Multidirectional stable clamping tool for workpiece

Abstract

The utility model provides a workpiece multidirectional stable clamping tool which comprises a working table and a clamp assembly, the working table is used for placing a workpiece, and a fixing support is arranged below the working table. The clamp assembly comprises a first clamp and a second clamp, the first clamp is arranged on the workbench, and the first clamp is matched with the workbench to clamp a workpiece in the height direction of the workpiece; more than one positioning piece is further arranged on the workbench, the positioning pieces are arranged in a protruding mode outwards from the surface of the workbench, the positioning pieces are used for being embedded into a workpiece to limit the position of the workpiece, the second clamp is arranged on the fixing support, the second clamp is matched with the positioning pieces to clamp the workpiece in the width direction of the workpiece, and the second clamp is embedded into a concave hole of the workpiece through the positioning pieces. A workpiece is positioned, then the workpiece is installed, the workpiece is preliminarily fixed, and deviation of the workpiece is avoided; meanwhile, the workpiece is clamped through the first clamp and the second clamp, the workpiece is clamped in the height direction and the width direction of the workpiece at the same time, and stability is good.

Description

Technical Field

[0001] The utility model relates to the field of clamps, in particular to a multi-directional stable clamping tool for a workpiece. Background Art

[0002] During welding of larger workpieces, in order to ensure the stability of welding, it is necessary to clamp the workpiece at different positions at the same time. Especially for large workpieces, if only the upper end of the workpiece is clamped, during the welding process, the side of the workpiece will be affected by the force and move within the clamping surface, resulting in low clamping stability.

[0003] A patent document in China with application number 202023110405.0 and announcement date 2021.8.31 discloses a welding flip fixture, including a base, a rectangular workbench and a flip mechanism for driving the workbench to flip, wherein the rotating shaft of the workbench is rotatably connected to the bracket; the flip mechanism includes a gear box, a bearing seat and a turntable; a stop mechanism is also provided, and the stop mechanism includes a wheel disc and a connecting rod structure, and the wheel disc is arranged between the bearing seat and the workbench; the connecting rod structure includes a first connecting rod, a second connecting rod and a third connecting rod; the workbench is provided with a plurality of clamping mechanisms to clamp and fix the workpiece, and the clamping mechanisms are symmetrically distributed along both sides of the workbench.

[0004] In this clamp, since the pressure block is located above the support block, the workpiece is clamped by moving the pressure block closer to the support block below. The clamp can only clamp the workpiece along the height direction of the workpiece, and only clamp the workpiece by the friction between the pressure block and the workpiece, and the friction between the support block and the workpiece. The workpiece cannot be clamped in the height direction of the workpiece, nor can it be clamped in the width direction of the workpiece. In this way, when a force is applied along the width direction of the workpiece, the workpiece is easy to move in the clamping fixture, and the stability is poor. Summary of the invention

[0005] The utility model provides a multi-directional stable clamping tool for a workpiece, which clamps the workpiece along the height direction and the width direction of the workpiece and has good stability.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a stable clamping tool for a workpiece, comprising a workbench and a fixture assembly, the workbench is used to place the workpiece, and a fixed bracket is provided under the workbench; the fixture assembly comprises a first fixture and a second fixture, the first fixture is arranged on the workbench, and the first fixture cooperates with the workbench to clamp the workpiece along the height direction of the workpiece; there is also one or more positioning members on the workbench, the positioning members are protruding outward from the surface of the workbench, the positioning members are used to be embedded in the workpiece to limit the position of the workpiece, the second fixture is arranged on the fixed bracket, and the second fixture cooperates with the positioning member to clamp the workpiece along the width direction of the workpiece.

[0007] In the above arrangement, a recessed hole cooperating with the positioning piece is provided in the workpiece, and the positioning piece is embedded in the recessed hole of the workpiece to position the workpiece, and then the workpiece is preliminarily fixed when it is installed to avoid deviation of the workpiece; at the same time, since the first clamp acts on the workpiece along the height direction of the workpiece, and the second clamp acts on the workpiece along the width direction of the workpiece, the workpiece is clamped respectively by the first clamp and the second clamp, and the workpiece is clamped simultaneously along the height direction and the width direction of the workpiece, and the stability is good.

[0008] Furthermore, the first clamp includes a connecting threaded column, one end of which is passed through the mounting through hole of the workbench, and a supporting assembly and a clamping block are sleeved on the connecting threaded column, and the clamping block is arranged above the supporting assembly and abuts against the supporting assembly; the supporting assembly is provided with a second threaded hole, and the second threaded hole is threadedly connected to the connecting threaded column; a waist hole is provided in the clamping block, and the waist hole is arranged along the length direction of the clamping block, and the connecting threaded column is passed through the waist hole, and a locking piece is provided above the clamping block, and the locking piece is provided with a first threaded hole, and the first threaded hole is threadedly connected to the connecting threaded column to press the clamping block onto the supporting assembly.

[0009] In the above arrangement, the first clamp supports the clamp block through the supporting assembly, and the waist hole of the clamp block cooperates with the connecting thread column to realize the movement of the clamp block along the circumferential direction of the connecting thread column, so as to adjust the position of the clamp block by rotating the clamp block. When placing the workpiece, the clamp block is rotated so that the clamp block avoids the workpiece, which is convenient for placing the workpiece on the workbench; when the workpiece is placed in place; the clamp block is rotated again so that the clamp block swings above the workpiece, and the clamp block is locked by the locking member to limit the rotation position of the clamp block on the connecting thread column, and the clamp block cooperates with the workbench to clamp the workpiece. At the same time, by rotating the clamp block, the position of the clamp block can be adjusted to realize the clamping of the workpiece at different positions by the clamp block.

[0010] Furthermore, the first clamp includes a second connecting column, one end of which is inserted into the fixed bracket, and a second supporting assembly and a second clamping block are sleeved on the second connecting column, and the second clamping block is arranged above the second supporting assembly and abuts against the second supporting assembly; the second supporting assembly is threadedly connected to the connecting threaded column; a through hole is provided in the second clamping block, and the second connecting column is inserted in the through hole, and a second locking member is provided above the second clamping block, and the second locking member is threadedly connected to the second connecting column to press the second clamping block onto the second supporting assembly.

[0011] With the above arrangement, the second clamp cooperates with the positioning member to clamp the workpiece along the thickness direction of the workpiece, which has a good clamping effect and good stability on the workpiece.

[0012] Furthermore, one end of the clamping block is used to contact the workpiece, and the other end of the clamping block is connected to a support portion, which is located below the clamping block and extends along the length direction of the connecting threaded column.

[0013] In the above arrangement, the bottom of the support part is used to abut against the workbench, and under the action of the support part, the supporting effect on the clamping block is improved.

[0014] Furthermore, a protrusion is provided on the bottom surface of the support portion, and the cross-sectional area of ​​the protrusion is smaller than the cross-sectional area of ​​the bottom surface of the support portion.

[0015] The above arrangement sets the raised portion in contact with the workbench, reducing the contact area between the support portion and the workbench, thereby reducing the friction between the support portion and the workbench when the clamping block is rotated.

[0016] Furthermore, a cushion block is provided between the locking piece and the clamping block, and the cushion block is sleeved on the connecting column; the cross-sectional area of ​​the cushion block is greater than the cross-sectional area of ​​the locking piece.

[0017] The above arrangement increases the contact area between the locking member and the clamping block by providing the spacer block, and the locking member has a good locking effect on the clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial three-dimensional schematic diagram of the first clamp and the second clamp of the utility model clamping a workpiece.

[0019] Figure 2 It is a partial schematic diagram of the first clamp and the second clamp of the utility model clamping a workpiece.

[0020] Figure 3 It is a three-dimensional schematic diagram of the first clamp in the utility model.

[0021] Figure 4 This is an exploded view of the first clamp in the present utility model.

[0022] Figure 5 It is a three-dimensional schematic diagram of the second clamp in the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1-5 As shown, a multi-directional stable clamping tool for workpieces includes a workbench 1 and a fixture assembly, the workbench 1 is used to place the workpiece 5, the fixture assembly includes a first fixture 2 and a second fixture 3, the first fixture 2 is installed on the workbench, the first fixture 2 cooperates with the workbench 1 to clamp the workpiece 5 along the height direction of the workpiece 5; one or more positioning members 11 are also provided on the workbench 1, the positioning members 11 are protruding outward from the surface of the workbench, the positioning members 11 are used to embed in the workpiece 5 to limit the position of the workpiece 5, the second fixture 3 is arranged on the fixed bracket 4, the second fixture cooperates with the positioning member to clamp the workpiece 5 along the width direction of the workpiece 5.

[0025] A recessed hole (not shown in the figure) cooperating with the positioning member 11 is provided in the workpiece 5. The positioning member 11 is embedded in the recessed hole of the workpiece 5 to position the workpiece, and then the workpiece is preliminarily fixed when it is installed to avoid deviation of the workpiece. At the same time, the workpiece is clamped respectively by the first clamp 2 and the second clamp 3, and the workpiece is clamped simultaneously along the height direction and the width direction of the workpiece, so that the stability is good.

[0026] The first clamp 2 includes a connecting threaded column 21, one end of which is inserted into a mounting through hole (not shown in the figure) of the workbench 1, and a supporting component 22 and a clamping block 23 are sleeved on the connecting threaded column 21, and the clamping block 23 is arranged above the supporting component 22 and abuts against the supporting component 22; the supporting component 22 has a second threaded hole, and the second threaded hole is threadedly connected to the connecting threaded column 21; when the supporting component 22 is installed in place on the connecting threaded column 21, the movement of the supporting component 22 is restricted along the height direction of the connecting threaded column 21, and the support of the clamping block 23 is stable.

[0027] A waist hole 231 is provided in the clamping block 23, and the waist hole 231 is arranged along the length direction of the clamping block 23. The connecting threaded column 21 is passed through the waist hole 231. A locking piece 24 is provided above the clamping block 23, and the locking piece 24 is provided with a first threaded hole. The first threaded hole is threadedly connected to the connecting threaded column 21 to press the clamping block 23 onto the supporting assembly 22.

[0028] The first clamp 2 supports the clamp block 23 through the supporting assembly 22, and the waist hole 231 of the clamp block 23 cooperates with the connecting thread column 21 to realize the movement of the clamp block 23 along the circumferential direction of the connecting thread column 21, so that the position of the clamp block 23 can be adjusted by rotating the clamp block 23. When placing the workpiece 5, the clamp block 23 is rotated so that the clamp block 23 avoids the workpiece 5, which is convenient for placing the workpiece 5 on the workbench 1; when the workpiece 5 is placed in place; the clamp block 23 is rotated again so that the clamp block 23 swings above the workpiece 5, and the clamp block 23 is locked by the locking member 24 to limit the rotation position of the clamp block 23 on the connecting thread column 21, and the clamp block 23 cooperates with the workbench 1 to clamp the workpiece 5. At the same time, by rotating the clamp block 23, the position of the clamp block 23 can be adjusted to realize the clamping of the workpiece 5 at different positions by the clamp block 23.

[0029] Reference Figure 2 As shown, the first clamp 2 is installed on the workbench 1; the connecting threaded column 21 is installed on the workbench 1 by the abutment portion 211 abutting against the bottom surface of the workbench 1 and the supporting assembly 22 abutting against the top surface of the workbench 1.

[0030] The supporting assembly 22 includes at least one fastener 221 , and the second threaded hole is disposed in the fastener 221 . In the present embodiment, the fastener 222 and the locking member 244 are nuts.

[0031] In this embodiment, one end of the clamping block 23 is used to contact the workpiece 5, and the other end of the clamping block 23 is connected to a support portion 25, which is located below the clamping block 23 and extends along the length direction of the connecting threaded column 21. The bottom of the support portion 25 is used to abut against the workbench 1, and under the action of the support portion 25, the support effect on the clamping block 23 is improved. A protrusion 251 is convexly provided on the bottom surface of the support portion 25, and the cross-sectional area of ​​the protrusion 251 is smaller than the cross-sectional area of ​​the bottom surface of the support portion 25. The protrusion 251 is arranged to contact the workbench 1 to reduce the contact area between the support portion 25 and the workbench 1, thereby reducing the friction between the support portion 25 and the workbench 1 when the clamping block 23 is rotated.

[0032] The support portion 25 is detachably connected to the clamping block 23, which facilitates the disassembly and assembly of the support portion 25 on the clamping block 23. In this embodiment, a first mounting hole 232 is provided on the other end of the clamping block 23, and a second mounting hole 252 is provided in the support portion 25. The second mounting hole 252 is a threaded hole. A bolt passes through the first mounting hole 232 and is threadedly connected to the second mounting hole 252, thereby realizing a detachable connection between the support portion 25 and the clamping block 23, and the structure is simple.

[0033] A cushion block 26 is provided between the locking member 24 and the clamping block 23, and the cushion block 26 is sleeved on the connecting threaded column 21; the cross-sectional area of ​​the cushion block 26 is larger than the cross-sectional area of ​​the locking member 24. By providing the cushion block 26, the contact area between the locking member 24 and the clamping block 23 is increased, and the locking effect of the locking member 24 on the clamping block 23 is good.

[0034] The second clamp 3 includes a second connecting column 31, a second supporting assembly 32, a second clamping block 33 and a second locking member 34; the second supporting assembly 32, the second clamping block 33 and the second locking member 34 are arranged on the connecting column 31, the second clamping block 33 is located between the second supporting assembly 32 and the second locking member 34, one side of the second supporting assembly 32 abuts against the fixed bracket 4, and the other side of the second supporting assembly 32 abuts against the second clamping block 33, and the second locking member 34 is used to lock the second clamping block 32. In this embodiment,

[0035] The second connecting column 31 has the same structure as the connecting threaded column 21 , the second supporting assembly 32 has the same structure as the supporting assembly 22 , the second clamping block 33 has the same structure as the clamping block 23 , and the second locking member 34 has the same structure as the locking member 24 .

[0036] The second clamping block 32 is provided with a through hole, and the second clamping block 32 can be rotatably disposed on the second connecting column 31 through the through hole. One end of the second clamping block 32 extends along the height direction of the workbench 1.

[0037] The first clamp 2 cooperates with the workbench 1 to clamp the workpiece along the height direction of the workpiece; the second clamp cooperates with the positioning piece to clamp the workpiece along the width direction of the workpiece, which has a good clamping effect and good stability on the workpiece. Figure 2 As shown, the clamping block 23 of the first clamp 2 clamps the workpiece along the K1 direction; the second clamping block 33 of the second clamp 3 clamps the workpiece along the K2 direction.

[0038] The working principle of the utility model is as follows: before placing the workpiece 5, the clamping block 23 rotates relative to the connecting threaded column 21, so that the clamping block 23 does not interfere with the workpiece 5 placed on the workbench 1; the second clamping block 33 rotates relative to the second connecting column 31 to avoid the workpiece 5, and the workpiece 5 is placed on the workbench 1 by aligning the concave hole of the workpiece 5 with the positioning member 14; then the clamping block 23 is rotated above the workpiece 5; then the locking member 24 is tightened, and under the pressure of the locking member 24, the clamping block 23 presses the workpiece 5 on the workbench 1, and clamps the workpiece 5 along the height direction of the workpiece.

[0039] Rotate the second clamping block 33 to one side of the workpiece 5; then tighten the second locking member 34. Under the pressure of the second locking member 34, the second clamping block 33 presses the workpiece 5 onto the positioning member 14 and clamps the workpiece 5 along the thickness direction of the workpiece.

[0040] When the clamping block 23 on the workbench 1 moves horizontally, the position of the clamping block 23 on the connecting threaded column 21 is adjusted, and the clamping block 23 is moved relative to the connecting threaded column 21 along the length direction of the clamping block 23 to change the position of the clamping block 23.

Claims

1. A multi-directional stable clamping tool for a workpiece, comprising a workbench and a clamp assembly, characterized in that: The workbench is used to place the workpiece, and a fixed bracket is provided under the workbench; the clamp assembly includes a first clamp and a second clamp, the first clamp is arranged on the workbench, and the first clamp cooperates with the workbench to clamp the workpiece along the height direction of the workpiece; there is also one or more positioning members on the workbench, the positioning members are arranged to protrude outward from the surface of the workbench, and the positioning members are used to be embedded in the workpiece to limit the position of the workpiece, and the second clamp is arranged on the fixed bracket, and the second clamp cooperates with the positioning members to clamp the workpiece along the width direction of the workpiece.

2. The multi-directional stable clamping tool for workpieces according to claim 1, characterized in that: The first clamp includes a connecting threaded column, one end of which is inserted into the mounting through hole of the workbench, a supporting assembly and a clamping block are sleeved on the connecting threaded column, and the clamping block is arranged above the supporting assembly and abuts against the supporting assembly; the supporting assembly is provided with a second threaded hole, and the second threaded hole is threadedly connected to the connecting threaded column; a waist hole is provided in the clamping block, and the waist hole is arranged along the length direction of the clamping block, the connecting threaded column is inserted into the waist hole, a locking piece is provided above the clamping block, and the locking piece is provided with a first threaded hole, and the first threaded hole is threadedly connected to the connecting threaded column to press the clamping block onto the supporting assembly.

3. The multi-directional stable clamping tool for workpieces according to claim 1, characterized in that: The first clamp includes a second connecting column, one end of which is inserted into the fixed bracket, and a second supporting assembly and a second clamping block are sleeved on the second connecting column, and the second clamping block is arranged above the second supporting assembly and abuts against the second supporting assembly; the second supporting assembly is threadedly connected to the connecting threaded column; a through hole is provided in the second clamping block, and the second connecting column is inserted into the through hole, and a second locking member is provided above the second clamping block, and the second locking member is threadedly connected to the second connecting column to press the second clamping block onto the second supporting assembly.

4. The multi-directional stable clamping tool for workpieces according to claim 2, characterized in that: One end of the clamping block is used to contact the workpiece, and the other end of the clamping block is connected to a supporting portion, which is located below the clamping block and extends along the length direction of the connecting threaded column.

5. The multi-directional stable clamping tool for workpieces according to claim 4, characterized in that: A protrusion is convexly arranged on the bottom surface of the support portion, and the cross-sectional area of ​​the protrusion is smaller than the cross-sectional area of ​​the bottom surface of the support portion.

6. The multi-directional stable clamping tool for workpieces according to claim 2, characterized in that: A cushion block is arranged between the locking piece and the clamping block, and the cushion block is sleeved on the connecting column; the cross-sectional area of ​​the cushion block is larger than the cross-sectional area of ​​the locking piece.

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