Narrow-gap product assembling and clamping mechanism

Abstract

The utility model discloses a narrow-gap product assembling and clamping mechanism which comprises a lower base plate, an upper base plate and a lower base plate. The two vertical plates are parallel to each other and are perpendicular to the lower base plate, notches are formed in the tops of the vertical plates, and tubular parts penetrate through the notches and are placed in the notches; the inner positioning mechanism is arranged between the two vertical plates, is located at the bottom and is used for extruding and fixing a gear piece arranged on the tubular piece in a sleeving manner towards the outer sides of the two vertical plates; and the upper pressing mechanism comprises a movable rod and a driving part, and when the upper pressing mechanism works, the driving part drives the movable rod to obliquely press the top of the tubular part downwards so as to extrude the gear part towards the vertical plate. And the upper pressing mechanism works to obliquely press the edge of the gear disc, so that the gear disc generates pressure in the oblique direction from the top, oblique thrust can be generated while the position deviation of the gear disc is limited from the top, and the gear disc is transversely extruded to the inner side of the vertical plate again.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly clamping and welding, in particular to an assembly clamping mechanism for narrow-gap products. Background Art

[0002] In the current production process, two small tooth plates need to be welded to the center shaft, and the welds are all on the inside. Currently, the two small tooth plates are mainly put on the center shaft manually, and then put into the fixture. Then, a double-acting cylinder in the middle extends upward, and the tooth plates on both sides are pressed tightly through a rotating mechanism.

[0003] Since the double-acting cylinder only presses the parts from below through the rotating mechanism, and there is no mechanism above to press the parts, the parts may be pressed at an angle or misaligned up and down. In this case, after welding, the part size will be out of tolerance, resulting in the scrapping of the parts and affecting production efficiency.

[0004] Therefore, there is still a need for a narrow gap product assembly clamping mechanism to solve the above problems. Utility Model Content

[0005] The utility model provides a narrow gap product assembly clamping mechanism for solving the above problem.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] A narrow gap product assembly clamping mechanism comprises a lower base plate, two vertical plates, an inner positioning mechanism and an upper pressing mechanism.

[0008] The two vertical plates are parallel to each other and are arranged perpendicular to the lower base plate. A notch is opened on the top of the vertical plate for the tubular member to pass through and be placed.

[0009] The inner positioning mechanism is arranged between the two vertical plates and located at the bottom, and is used to press and fix the gear member sleeved on the tubular member toward the outer sides of the two vertical plates.

[0010] The pressing mechanism comprises a movable rod and a driving member. When working, the driving member drives the movable rod to press down obliquely on the top of the tubular member to press the gear member toward the vertical plate.

[0011] In one embodiment, a driving inclined surface is provided on one end of the movable rod close to the gear member, and the movable rod abuts against the top edge of the tubular member of the gear member through the inclined surface.

[0012] In one embodiment, the driving member includes a telescopic end and a fixed end, the telescopic end is slidably connected to the inside of the fixed end, the middle section of the movable rod is rotatably connected to the vertical plate via a pin shaft, and the top of the telescopic end of the driving member is rotatably connected to the end of the movable rod away from the inclined surface.

[0013] In one embodiment, the surface of the inclined surface is also fitted with a wear-resistant portion.

[0014] In one embodiment, the internal positioning mechanism includes a horizontal plate, a cylinder and a connecting rod. The cross-sectional shape of the connecting rod is L-shaped. One end of the connecting rod is rotatably connected to a protrusion extending from the inner wall of the vertical plate. The movable end of the cylinder passes through the hole of the horizontal plate and is rotatably connected to the bottom end of the connecting rod. The cylinder drives the connecting rod to rotate around the connection between the protrusion and the connecting rod.

[0015] In one embodiment, it also includes a gear positioning portion, which is connected to the inner side of the vertical plate and corresponds to the notch. A limiting groove is provided on the gear positioning portion. The cross-sectional shape of the limiting groove matches the cross-sectional shape of at least one tooth of the gear member to fix the rotation direction of the gear member on the tubular member.

[0016] In one embodiment, an angle limiting member is further included. The angle limiting member is arranged on the inner side of the vertical plate and corresponds to the notch, and is used to abut against the outer edge of the gear member.

[0017] Compared with the prior art, the beneficial effects of the present invention include at least:

[0018] When the gear plate and the metal rod need to be welded, the internal positioning mechanism arranged between the two vertical plates first squeezes the gear plates on both sides toward the outside between the two vertical plates, so that the gear plates are tightly squeezed in the relative position on the tubular member, and initially positioned. Then the upper pressing mechanism works to tilt and press the edge of the gear plate, so that the gear plate generates pressure from the top in an oblique direction. While limiting the position deviation of the gear plate from the top, it can also generate an oblique thrust, and again squeeze the gear plate laterally against the inner side of the vertical plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly clamping mechanism and product installation status of the embodiment of the utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the assembly clamping mechanism and product installation status of the embodiment of the utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model without the connecting rod;

[0022] Figure 4 yes Figure 3 A local enlarged view of point A;

[0023] Figure 5 It is a schematic diagram of the structure of the movable rod of an embodiment of the utility model.

[0024] In the figure: 1, lower base plate; 2, vertical plate; 21, notch; 4, upper pressure mechanism; 41, movable rod; 42, driving member; 421, driving inclined surface; 422, wear-resistant part; 5, inner positioning mechanism; 51, horizontal plate; 52, cylinder; 53, connecting rod; 6, protrusion; 7, gear positioning part; 8, angle limiting member. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0026] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0027] Reference Figure 1-5 The utility model provides a narrow gap product assembly clamping mechanism, comprising: a lower base plate 1, two vertical plates 2, an inner positioning mechanism 5 and an upper pressing mechanism 4. The lower base plate 1 is, for example, a metal rectangular base plate. The two vertical plates 2 are two parallel metal plates, and the two vertical plates 2 are vertically connected to the metal rectangular base plate.

[0028] The two vertical plates 2 are arranged parallel to each other and perpendicular to the lower base plate 1. A notch 21 is provided on the top of the vertical plate 2 for the tubular member to pass through and be placed. The cross-sectional shape of the notch 21 is, for example, rectangular or circular. The inner positioning mechanism 5 is arranged between the two vertical plates 2 and located at the bottom, and is used to press and fix the gear member sleeved on the tubular member toward the outside of the two vertical plates 2, so as to press the gear members on both sides in an outwardly expanding form. The upper pressing mechanism 4 includes a movable rod 41 and a driving member 42. When working, the driving member 42 drives the movable rod 41 to press down obliquely on the top of the tubular member to press the gear member toward the vertical plate 2. When the movable rod 41 presses downward obliquely, the oblique pressure generated when the gear piece is pressed can generate a tendency force to press toward the vertical plate 2 in the horizontal direction, and a tendency force perpendicular to the axial direction of the tubular member in the vertical direction, so as to prevent the gear piece from being offset in the vertical position and in the horizontal direction during welding, resulting in the problem of loose welding seams between the gear piece and the pipe axis.

[0029] In one embodiment, a driving inclined surface 421 is provided on one end of the movable rod 41 close to the gear member, and the movable rod 41 abuts against the top edge of the tubular member of the gear member through the inclined surface. The length projection of the inclined surface in the axial direction of the tubular member is greater than the distance that the gear member is squeezed in the lateral direction after docking with the gear member, so that the driving inclined surface 421 always tilts and squeezes the gear member.

[0030] In one embodiment, the driving member 42 includes a telescopic end and a fixed end, the telescopic end is slidably connected to the inside of the fixed end, the middle section of the movable rod 41 is rotatably connected to the vertical plate 2 through a pin shaft, and the top of the telescopic end of the driving member 42 is rotatably connected to the end of the movable rod 41 away from the inclined surface. The driving member 42 is, for example, a pneumatic cylinder or a hydraulic cylinder. The fixed end is an outer tube of the cylinder 52 with a fixed position, and the telescopic end is a metal column inside the fixed end that can be telescoped and moved relative to the outer tube. When working, the middle section of the movable rod 41 is rotated to connect to the rotating fulcrum of the lever, the telescopic end is the output end of the power, and is also the first point of action of the force, and the inclined surface is the second point of action. Through the cooperation of the telescopic end and the fixed end of the driving member 42, the gear piece can be stably and effectively tilted and squeezed accurately at the preset position of the pipe axis, preventing the welding quality from being reduced due to the uneven matching clearance between the shaft holes during welding.

[0031] In the embodiment, the surface of the inclined surface is also attached with a wear-resistant portion 422. The wear-resistant portion 422 is, for example, a hard alloy coating or a rubber wear-resistant sheet to prevent the inclined surface from being damaged after repeatedly pressing the edge of the fixed gear sheet, thereby reducing the accuracy of subsequent inclined extrusion.

[0032] In one embodiment, the inner positioning mechanism 5 comprises a horizontal plate 51, a cylinder 52 and a connecting rod 53. The cross-sectional shape of the connecting rod 53 is L-shaped. One end of the connecting rod 53 is rotatably connected to the protrusion 6 extending from the inner wall of the vertical plate 2. The movable end of the cylinder 52 passes through the hole of the horizontal plate 51 and is rotatably connected to the bottom end of the connecting rod 53. The cylinder 52 drives the connecting rod 53 to rotate around the connection between the protrusion 6 and the connecting rod 53. The horizontal plate 51 is, for example, clamped horizontally between two vertical plates 2. The side walls of the horizontal plate 51 and the vertical plates 2 are fixed by bolts. The connecting rod 53 with an L-shaped cross-section is rotatably connected to different connections at three inflection points by pins. When working, the connecting rod 53 acts as a lever. The principle is the same as that of the cylinder 52 in the above embodiment, which will not be repeated here.

[0033] In one embodiment, a gear positioning part 7 is further included, and the gear positioning part 7 is connected to the inner side of the vertical plate 2 and corresponds to the notch 21. A limiting groove is provided on the gear positioning part 7, and the cross-sectional shape of the limiting groove matches the cross-sectional shape of at least one tooth of the gear member to fix the rotation direction of the gear member on the tubular member. The limiting groove shape of the gear positioning part 7 matches the shape of the gear member. During welding, a tooth on the gear piece is inserted into the limiting groove, and the gear piece is limited to rotate in the rotation direction, thereby preventing rotation during welding, thereby reducing the welding quality.

[0034] In one embodiment, an angle limiting member 8 is further included, and the angle limiting member 8 is arranged on the inner side of the vertical plate 2 and corresponds to the notch 21, and is used to abut the outer edge of the gear member. The angle limiting member 8 can be a metal column arranged on the vertical plate 2 near the notch 21. When working, the metal column abuts the gear piece from the outer wall of the gear member. When installing, when the position of the gear member is incorrect, the metal column is located at the side wall of the gear member to abut, so that the gear member cannot reach the preset position laterally. The staff can intuitively understand that the rotation angle of the gear member is incorrect, and adjust and reposition it to prevent the angle of the gear member installed on the pipe shaft from being inconsistent, resulting in a low qualified rate.

[0035] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A narrow gap product assembly clamping mechanism, characterized in that: include: lower base plate; Two vertical plates, the two vertical plates are parallel to each other and arranged perpendicular to the lower base plate, and a notch is opened on the top of the vertical plates for the tubular member to pass through and be placed; An inner positioning mechanism, which is disposed between the two vertical plates and located at the bottom, and is used to press and fix the gear member sleeved on the tubular member toward the outer sides of the two vertical plates; The pressing mechanism includes a movable rod and a driving member. When working, the driving member drives the movable rod to press down on the top of the tubular member obliquely to press the gear member toward the vertical plate.

2. The narrow gap product assembly clamping mechanism according to claim 1, characterized in that: A driving inclined surface is arranged on one end of the movable rod close to the gear member, and the movable rod abuts against the top edge of the tubular member of the gear member through the driving inclined surface.

3. The narrow gap product assembly clamping mechanism according to claim 2, characterized in that: The driving member includes a telescopic end and a fixed end, the telescopic end is slidably connected to the inside of the fixed end, the middle section of the movable rod is rotatably connected to the vertical plate via a pin shaft, and the top of the telescopic end of the driving member is rotatably connected to an end of the movable rod away from the driving inclined surface.

4. The narrow gap product assembly clamping mechanism according to claim 2 or 3, characterized in that: The surface of the driving inclined surface is also fitted with a wear-resistant portion.

5. The narrow gap product assembly clamping mechanism according to claim 1, characterized in that: The internal positioning mechanism includes a horizontal plate, a cylinder and a connecting rod. The cross-sectional shape of the connecting rod is L-shaped. One end of the connecting rod is rotatably connected to a protrusion extending from the inner wall of the vertical plate. The movable end of the cylinder passes through the hole of the horizontal plate and is rotatably connected to the bottom end of the connecting rod. The cylinder drives the connecting rod to rotate around the connection between the protrusion and the connecting rod.

6. The narrow gap product assembly clamping mechanism according to claim 5, characterized in that: It also includes a gear positioning portion, which is connected to the inner side of the vertical plate and corresponds to the notch. A limiting groove is provided on the gear positioning portion. The cross-sectional shape of the limiting groove matches the cross-sectional shape of at least one tooth of the gear member to fix the rotation direction of the gear member on the tubular member.

7. The narrow gap product assembly clamping mechanism according to claim 6, characterized in that: It also includes an angle limiting member, which is arranged on the inner side of the vertical plate and corresponds to the notch, and is used to abut against the outer edge of the gear member.

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