Sealing steel belt clamping device

Abstract

The utility model belongs to the field of additive manufacturing, and relates to a sealing steel belt clamping device which comprises a clamping block, a wedge-shaped block and a jacking screw. In addition, the device further comprises a jacking plate arranged in the wedge-shaped groove. The wedge-shaped block is arranged in the wedge-shaped groove and is in wedge-shaped fit with the wedge-shaped groove; a jacking screw extends into the wedge-shaped groove from the outer part of the clamping block and is connected with the wedge-shaped block through a jacking plate; and the jacking screw drives the wedge-shaped block to move in the wedge-shaped groove through the jacking plate. The sealing steel belt clamping device is convenient to adjust integrally, good in clamping capacity and high in reliability.

Description

Technical Field

[0001] The utility model belongs to the field of additive manufacturing and relates to a sealing steel belt clamping device, in particular to a single-nut adjustment type sealing steel belt clamping device for SLM equipment. Background Art

[0002] Existing sealing steel belt clamping devices such as Figure 1 as well as Figure 2 As shown, the wedge block can be moved in the cavity of the clamping block by adjusting the nut. When the adjusting nut is tightened, the two independent wedge blocks are compressed and the sealing steel belt between the two wedge blocks is clamped at the same time; when the adjusting screw is loosened, the wedge block is pulled back, so that there is space to separate the wedge blocks on both sides, so that the wedge blocks no longer clamp the steel belt.

[0003] At the same time, the width of the steel strip that can be fixed by a single clamping block is limited. Usually, multiple sets of tensioning devices are combined to clamp a sealing steel strip of a certain width. However, when clamping the steel strip, multiple sets of structures cannot adjust multiple nuts at the same time to clamp the steel strip, which easily leads to uneven clamping force and clamping position of the steel strip between the clamping devices, causing the sealing steel strip to be installed skewed or creases on the steel strip, which easily damages the performance of the sealing steel strip and deteriorates the sealing performance of the SLM equipment forming cylinder. In addition, due to the excessive clamping force between the wedge block and the steel strip during clamping, the steel strip undergoes plastic deformation. Over time, the wedge block and the steel strip will temporarily stick together, resulting in the existing steel strip clamping device still fitting the steel strip on both sides when the tightening screw is pulled back. It is impossible to determine whether the clamping device has been loosened, which easily causes the adjusting nut to fall off due to exceeding the stroke, causing the clamping device to fail and requiring the clamping device to be disassembled and reassembled, reducing work efficiency. Utility Model Content

[0004] In order to solve the above technical problems existing in the background technology, the utility model provides a sealing steel belt clamping device which is easy to adjust as a whole, has good clamping ability and high reliability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sealing steel strip clamping device comprises a clamping block, a wedge block and a tightening screw, wherein the clamping block is provided with a wedge-shaped groove; the characteristic is that: the sealing steel strip clamping device also comprises a tightening plate placed in the wedge-shaped groove; the wedge block is placed in the wedge groove and cooperates with the wedge groove in a wedge shape; the tightening screw extends from the outside of the clamping block into the wedge groove and is connected to the wedge block through the tightening plate; the tightening screw drives the wedge block to move in the wedge groove through the tightening plate.

[0007] The above-mentioned wedge block is an integral structure or a split structure; when the wedge block is a split structure, there are multiple wedge blocks, and the multiple wedge blocks are arranged in a straight line; the tightening screw is connected to the multiple wedge blocks respectively through the tightening plate and simultaneously drives the wedge blocks to move in the wedge groove.

[0008] The above-mentioned tightening plate and wedge block are an integrated structure or a split structure; when the tightening plate and wedge block are a split structure, the tightening plate is connected to the wedge block by snap connection, magnetism or bolts, and is preferably connected to the wedge block by mortise and tenon connectors.

[0009] The above-mentioned sealing steel belt clamping device also includes a sliding member arranged between the wedge block and the clamping block and / or between the top clamping plate and the clamping block; the axial direction of the sliding member is parallel to the moving direction of the wedge block; the sliding member is a ball slide groove mating member or a slide rail slide groove mating member; the wedge block is wedge-fitted with the wedge groove in the wedge groove through the sliding member.

[0010] The sealing steel strip clamping device further comprises a position adjusting member which is arranged on the tightening screw and is used to adjust the position of the tightening screw.

[0011] The above-mentioned position adjustment part includes a tightening nut and a tightening nut limiting block for limiting the tightening nut; the tightening nut limiting block is fixedly arranged on the outside of the clamping block; the tightening nut is placed on the outside of the clamping block and is connected to the tightening screw thread exposed on the outside of the clamping block; when the tightening nut is rotated, the tightening nut drives the wedge block to move in the wedge groove through the tightening screw and the tightening plate.

[0012] The position adjustment member further comprises a stop nut, which is placed inside the clamping block and is threadably connected to the tightening screw.

[0013] The above-mentioned sealing steel belt clamping device also includes a steel belt guide block arranged on the top tightening plate; a first steel belt passage gap for the sealing steel belt to pass through is provided between the steel belt guide block and the top tightening plate; the sealing steel belt in the wedge-shaped block extends from the wedge-shaped block to the first steel belt passage gap between the steel belt guide block and the top tightening plate.

[0014] The above-mentioned clamping block is provided with a second steel belt passing gap for the sealing steel belt to pass through. The sealing steel belt placed in the first steel belt passing gap extends from the first steel belt passing gap to the second steel belt passing gap, or the sealing steel belt placed in the first steel belt passing gap extends from the first steel belt passing gap to the second steel belt passing gap and passes through the second steel belt passing gap.

[0015] The above-mentioned sealing steel belt clamping device also includes a steel belt positioning block arranged on the clamping block and / or at the opening of the wedge-shaped groove to position the sealing steel belt; the sealing steel belt extends into the wedge-shaped block through the steel belt positioning block at the opening of the wedge-shaped groove, or the sealing steel belt in the wedge-shaped block passes through the wedge-shaped block, the first steel belt passing gap and the second steel belt passing gap in sequence and is arranged on the steel belt positioning block on the clamping block.

[0016] The advantages of the utility model are:

[0017] The utility model provides a sealing steel strip clamping device, comprising a clamping block, a wedge block, and a tightening screw, wherein the clamping block is provided with a wedge-shaped groove; the sealing steel strip clamping device is characterized in that: the sealing steel strip clamping device also includes a tightening plate placed in the wedge-shaped groove; the wedge block is placed in the wedge-shaped groove and is wedge-matched with the wedge groove; the tightening screw extends from the outside of the clamping block into the wedge-shaped groove and is connected to the wedge block through the tightening plate; the tightening screw drives the wedge block to move within the wedge groove through the tightening plate. The utility model treats multiple tightening blocks as a whole to meet the clamping width of the sealing steel strip, and the position of the entire wedge block can be adjusted by a tightening screw, thereby ensuring uniform clamping force during the clamping process. At the same time, the utility model connects the tightening plate and the wedge block through a mortise and tenon joint (such as a trapezoidal groove sliding method), and clamps the block and the wedge block through a sliding member (such as a ball slide matching member or a slide rail slide matching member), so that the wedge block can always contact the clamping block and the tightening plate, achieving a predetermined clamping action. In addition, by increasing the steel strip running gap and the steel strip guide block, the present invention allows the steel strip clamping device to accommodate excess steel strip length, reducing the workload associated with steel strip cutting. The present invention also provides increased positioning accuracy for the sealing steel strip by adding a steel strip positioning block, effectively preventing deviation during installation. Compared to existing technologies, the present invention is more efficient in steel strip clamping operations and provides a more uniform clamping force when clamping the sealing steel strip. The trapezoidal groove slide rail connection method allows the wedge block to be fixed in position, ensuring the reliability of the steel strip clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a sealing steel belt clamping device in the prior art when the sealing steel belt is clamped;

[0019] Figure 2 This is a structural diagram of the sealing steel belt clamping device in the prior art when the sealing steel belt is released;

[0020] Figure 3 This is a structural diagram of the sealing steel belt clamping device provided by the present invention when the sealing steel belt is released;

[0021] Figure 4 yes Figure 3 A side structural diagram of

[0022] Figure 5 This is a schematic structural diagram of the sealing steel belt clamping device provided by the present invention when the sealing steel belt is clamped;

[0023] Figure 6 yes Figure 5 A side structural diagram of

[0024] Figure 7 This is a structural diagram of a sealing steel belt clamping device with a steel belt stretching space provided by the utility model;

[0025] Figure 8 yes Figure 7 A side structural diagram of

[0026] Figure 9 This is a structural diagram of a sealing steel belt clamping device with a steel belt installation positioning block provided by the present invention;

[0027] Figure 10 yes Figure 9 A side structural diagram of

[0028] Figure 11 This is a structural diagram of the sealing steel belt clamping device (containing multiple wedge-shaped blocks) provided by the utility model;

[0029] in:

[0030] 1-Tightening nut; 2-Stop nut; 3-Tightening screw; 4-Tightening nut limit block; 5-Clamping block; 6-Tightening plate; 7-Wedge block; 8-Sealing steel belt; 9-Steel belt guide block; 10-Steel belt positioning block. DETAILED DESCRIPTION

[0031] See also Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 The utility model provides a sealing steel belt clamping device, including a clamping block 5, a wedge block 7 and a tightening screw 3. The clamping block 5 is provided with a wedge-shaped groove; in addition, it also includes a tightening plate 6 placed in the wedge groove; the wedge block 7 is placed in the wedge groove and cooperates with the wedge groove in a wedge shape; the tightening screw 3 extends from the outside of the clamping block 5 into the wedge groove and is connected to the wedge block 7 through the tightening plate 6; the tightening screw 3 drives the wedge block 7 to move in the wedge groove through the tightening plate 6.

[0032] The wedge block 7 is an integral structure or a split structure; when the wedge block 7 is a split structure, see Figure 11, there can be multiple wedge blocks 7, and the multiple wedge blocks 7 are arranged in a straight line; the tightening screw 3 is connected to the multiple wedge blocks 7 through the tightening plate 6 and simultaneously drives the wedge blocks 7 to move in the wedge groove. When the wedge block 7 is an integral structure, the width of the wedge block 7 exceeds the width of the wedge block in the prior art, so that it can clamp over a larger range. The utility model provides a sealing steel belt clamping device, which treats multiple wedge blocks 7 as a whole to meet the clamping width of the sealing steel belt 8. The position of the entire tightening plate (the whole formed by multiple wedge blocks 7) can be adjusted by a tightening screw 3, ensuring uniform clamping force during the clamping process.

[0033] The top clamping plate 6 and the wedge block 7 can be an integrated structure or a split structure; when the top clamping plate 6 and the wedge block 7 are a split structure, the top clamping plate 6 is connected to the wedge block 7 by snapping, magnetism or bolts. Exemplarily, the top clamping plate 6 is connected to the wedge block 7 by a mortise and tenon joint. Exemplarily, the cross-section of the mortise and tenon joint is trapezoidal or dovetail-shaped. Of course, it can also be of other cross-sectional shapes, as long as it is convenient to connect the top clamping plate 6 and the wedge block 7 to play a force transmission role. In order to facilitate the relative sliding of the wedge block 7 and the wedge groove, the sealing steel belt clamping device provided by the present invention also includes a sliding member arranged between the wedge block 7 and the clamping block and / or between the top clamping plate 6 and the clamping block; the axial direction of the sliding member is parallel to the moving direction of the wedge block 7. The sliding member is a ball slideway fitting member or a slide rail slideway fitting member; the wedge block 7 is wedge-fitted with the wedge groove in the wedge groove through the sliding member. Among them, the ball bearing slide groove fitting includes a slide groove and a ball placed in the slide groove. A slide groove can be opened at the position where the wedge block 7 contacts the wedge groove, and the ball bearing is embedded in the slide groove. The slide rail slide groove fitting includes a slide rail and a slide groove adapted to the slide rail. Exemplarily, the slide rail can be set on the wedge block 7, and the corresponding slide groove is set on the wedge groove. The position of the slide groove corresponds to the position of the slide rail, and the structure matches. Of course, the positions of the slide rail and the slide groove can be interchanged, which will not be repeated here. The utility model connects the top clamping plate and the wedge block through a mortise and tenon connector (such as a trapezoidal groove sliding method), and clamps the block and the wedge block through a sliding part (such as a ball bearing slide groove fitting or a slide rail slide groove fitting), so that the wedge block can always contact the clamping block and the top clamping plate to achieve a predetermined clamping action.

[0034] In order to conveniently screw the top screw 3 and thereby facilitate the sliding of the wedge block 7 and the inner wall of the wedge groove, the sealing steel strip clamping device provided by the present invention also includes a position adjustment member provided on the top screw 3 and used to adjust the position of the top screw 3. The position adjustment member includes a top screw nut 1 and a top screw nut limiting block 4 for limiting the top screw 1; the top screw nut limiting block 4 is fixedly provided on the outside of the clamping block 5; the top screw nut 1 is placed on the outside of the clamping block 5 and is threadedly connected to the top screw 3 exposed on the outside of the clamping block 5; when the top screw nut 1 is rotated, the top screw nut 1 drives the wedge block 7 to move in the wedge groove through the top screw 3 and the top plate. The top screw nut limiting block 4 limits the axial movement of the top screw 1 along the top screw 3, ensuring that when the top screw 1 is rotated, the top screw 3 can only extend and retract along the axial direction of the top screw 3, thereby achieving the wedge-shaped fit between the wedge block 7 and the wedge groove, completing the clamping or loosening of the sealing steel strip 8.

[0035] To prevent excessive tightening of the jacking screw 3 when loosening the sealing steel band 8, the position adjustment member employed in the present invention further includes a stop nut 2. The stop nut 2 is positioned within the clamping block 5 and is threadably connected to the jacking screw 3. When the jacking nut is rotated, particularly when loosening the sealing steel band 8, the jacking screw 3 no longer moves in its axial direction due to the limiting effect of the stop nut 2.

[0036] See also Figure 3 as well as Figure 4 Specifically, in the sealing steel strip clamping device provided by the present invention, the tightening screw 3 is installed in a groove on the inner side of the tightening plate 6, the stop nut 2 is installed in a groove on the outer side of the tightening plate 6, and the two sides of the tightening nut 1 are respectively abutted against the tightening nut limit block 4 and the clamping block 5. When the tightening nut 1 is used for adjustment, the relative position between the tightening nut 1 and the clamping block 5 remains unchanged, and the relative positions between the stop nut 2, the tightening screw 3, and the tightening plate 6 remain unchanged. A sliding gap for the tightening plate 6 is left on both sides of the clamping block 5. Under the action of the tightening nut 1, the tightening plate 6 can be pushed in the clamping direction (clamping the sealing steel strip) by the stop nut 2, and can also be pulled in the loosening direction of the sealing steel strip 8 by the tightening screw 3. The wedge block 7 is connected to the tightening plate 6 by a trapezoidal groove track, which allows the wedge block 7 to move along the direction in which the trapezoidal groove track is set. A trapezoidal groove track is provided along the slope between the wedge block 7 and the clamping block 5, so that the wedge block 7 can slide along the slope when subjected to the push and pull force of the clamping plate 5. When the top plate 6 is pressed against the clamping block 5, the wedge block 7 is in the open state, and the end face of the sealing steel belt 8 is extended into the gap of the wedge block 7. By adjusting the top nut 1, the top plate 6 pushes the wedge block to press the sealing steel belt 8. The structure in the compressed state is as follows Figure 5 as well as Figure 6 shown.

[0037] See also Figure 7 as well as Figure 8 In actual application, when clamping the sealing steel belt 8, an excessively long sealing steel belt 8 cannot be tightened by the clamping device, and the clamping end of the sealing steel belt 8 needs to be cut to meet the clamping length of the device. Therefore, the sealing steel belt clamping device provided by the present invention also includes a steel belt guide block 9 provided on the top clamping plate 6; a first steel belt passage gap for the sealing steel belt 8 to pass through is provided between the steel belt guide block 9 and the top clamping plate 6; the sealing steel belt 8 in the wedge block 7 extends from the wedge block 7 to the first steel belt passage gap between the steel belt guide block 9 and the top clamping plate 6. Preferably, a second steel belt passage gap for the sealing steel belt 8 to pass through is provided on the clamping block 5, and the sealing steel belt 8 placed in the first steel belt passage gap extends from the first steel belt passage gap to the second steel belt passage gap, or the sealing steel belt 8 placed in the first steel belt passage gap extends from the first steel belt passage gap to the second steel belt passage gap and passes out from the second steel belt passage gap. Figure 7 as well as Figure 8 The solution shown ensures that the clamping device is not limited by the excessive length of the steel strip during use, reduces the workload caused by cutting the steel strip, and improves the efficiency of the clamping device.

[0038] See also Figure 9 as well as Figure 10 The sealing steel strip clamping device provided by the present invention further includes a steel strip positioning block 10 provided on the clamping block 5 and / or at the opening of the wedge-shaped groove for positioning the sealing steel strip 8; the sealing steel strip 8 extends into the wedge-shaped block 7 through the steel strip positioning block 10 at the opening of the wedge-shaped groove, or the sealing steel strip 8 in the wedge-shaped block 7 sequentially passes through the wedge-shaped block 7, the first steel strip passage gap, and the second steel strip passage gap and is positioned on the steel strip positioning block 10 on the clamping block 5. The steel strip positioning block 10 is mounted on the clamping block 5 via a positioning pin. When installing the sealing steel strip 8, by placing one side of the sealing steel strip 8 against the steel strip positioning block 10, positioning accuracy can be provided for the installation of the sealing steel strip 8, so that the installation of the sealing steel strip 8 does not cause deviation, thereby achieving rapid positioning and installation of the sealing steel strip 8.

Claims

1. A sealing steel strip clamping device, comprising a clamping block (5), a wedge block (7) and a tightening screw (3), wherein the clamping block (5) is provided with a wedge groove; characterized in that: The sealing steel belt clamping device further comprises a tightening plate (6) placed in the wedge-shaped groove; the wedge block (7) is placed in the wedge-shaped groove and is wedge-matched with the wedge groove; the tightening screw (3) extends from the outside of the clamping block (5) into the wedge-shaped groove and is connected to the wedge block (7) through the tightening plate (6); the tightening screw (3) drives the wedge block (7) to move in the wedge-shaped groove through the tightening plate (6).

2. The sealing steel strip clamping device according to claim 1, characterized in that: The wedge block (7) is an integral structure or a split structure; when the wedge block (7) is a split structure, there are multiple wedge blocks (7), and the multiple wedge blocks (7) are arranged in a straight line; the tightening screw (3) is respectively connected to the multiple wedge blocks (7) through the tightening plate (6) and simultaneously drives the wedge blocks (7) to move in the wedge groove.

3. The sealing steel strip clamping device according to claim 2, characterized in that: The top tightening plate (6) and the wedge block (7) are of an integrated structure or a split structure; when the top tightening plate (6) and the wedge block (7) are of a split structure, the top tightening plate (6) is connected to the wedge block (7) by snap connection, magnetic attraction or bolts.

4. The sealing steel strip clamping device according to claim 3, characterized in that: The sealing steel belt clamping device further comprises a sliding member arranged between the wedge block (7) and the clamping block (5) and / or between the top clamping plate (6) and the clamping block (5); the axial direction of the sliding member is parallel to the moving direction of the wedge block (7); the sliding member is a ball slide groove matching member or a slide rail slide groove matching member; the wedge block (7) is wedge-matched with the wedge groove in the wedge groove through the sliding member.

5. The sealing steel strip clamping device according to claim 2, 3 or 4, characterized in that: The sealing steel band clamping device further comprises a position adjusting member which is arranged on the tightening screw (3) and is used to adjust the position of the tightening screw (3).

6. The sealing steel strip clamping device according to claim 5, characterized in that: The position adjustment member comprises a tightening nut (1) and a tightening nut limiting block (4) for limiting the tightening nut (1); the tightening nut limiting block (4) is fixedly arranged on the outside of the clamping block (5); the tightening nut (1) is placed on the outside of the clamping block (5) and is threadedly connected to a tightening screw (3) exposed on the outside of the clamping block (5); when the tightening nut (1) is rotated, the tightening nut (1) drives the wedge block (7) to move in the wedge groove through the tightening screw (3) and the tightening plate (6).

7. The sealing steel strip clamping device according to claim 6, characterized in that: The position adjustment member further comprises a stop nut (2); the stop nut (2) is placed inside the clamping block (5) and is threadably connected to the tightening screw (3).

8. The sealing steel strip clamping device according to claim 7, characterized in that: The sealing steel strip clamping device further comprises a steel strip guide block (9) arranged on the top tightening plate (6); a first steel strip passage gap for the sealing steel strip (8) to pass through is provided between the steel strip guide block (9) and the top tightening plate (6); the sealing steel strip (8) in the wedge block (7) extends from the wedge block (7) to the first steel strip passage gap between the steel strip guide block (9) and the top tightening plate (6).

9. The sealing steel strip clamping device according to claim 8, characterized in that: The clamping block (5) is provided with a second steel belt passage gap for the sealing steel belt (8) to pass through, and the sealing steel belt (8) placed in the first steel belt passage gap extends from the first steel belt passage gap to the second steel belt passage gap, or the sealing steel belt (8) placed in the first steel belt passage gap extends from the first steel belt passage gap to the second steel belt passage gap and passes through the second steel belt passage gap.

10. The sealing steel strip clamping device according to claim 9, characterized in that: The sealing steel strip clamping device further comprises a steel strip positioning block (10) arranged on the clamping block (5) and / or at the opening of the wedge-shaped groove for positioning the sealing steel strip (8); the sealing steel strip (8) extends into the wedge-shaped block (7) through the steel strip positioning block (10) at the opening of the wedge-shaped groove, or the sealing steel strip (8) in the wedge-shaped block (7) sequentially passes through the wedge-shaped block (7), the first steel strip passing gap, and the second steel strip passing gap and is arranged on the steel strip positioning block (10) on the clamping block (5).

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