Externally expanding limiting fixture for hollow profiles

Abstract

This utility model relates to the field of limiting fixture technology and discloses an outward-expanding limiting fixture for hollow profiles, comprising: a mounting plate, a connecting component fixedly mounted on the top of the mounting plate, a driving component fixedly mounted on the top of the connecting component, and a first mounting block fixedly mounted on the output end of the driving component. The beneficial effects of adopting the above technical solution are: the starting cylinder drives the top block upward through the output end, at which time the top block pushes the extrusion block upward. The extrusion block then slides through the inclined surface and the inclined support block, causing the extrusion block to slide to both sides of the inclined support block, thereby extruding and fitting the extrusion block against the inner wall of the hollow profile, thus clamping and fixing the hollow profile. Simultaneously, since the length of the extrusion block is equal to that of the hollow profile, the inner wall of the hollow profile is fully supported, preventing deformation.

Description

Technical Field

[0001] This utility model relates to the field of limiting fixture technology, and more specifically, to an outwardly expanding limiting fixture for hollow profiles. Background Technology

[0002] An outward-expanding limiting fixture for hollow profiles is a specialized tool for positioning and clamping hollow profile workpieces. Its core feature lies in its radially expandable mechanism, which applies force outward from the internal cavity of the profile, ensuring the contact surface adheres tightly to the inner wall of the profile. This achieves precise, stable, and damage-free fixation of the workpiece. In contrast, most existing outward-expanding limiting fixtures compress the hollow profile internally at points, which can easily cause slight deformation of the internal structure and affect the accuracy of profile processing. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides an externally expanding limiting fixture for hollow profiles, which has the advantage of being able to compress the profile to the appropriate width and prevent the profile from deforming.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an outwardly expanding limiting fixture for hollow profiles, comprising: a mounting plate, a connecting component fixedly mounted on the top of the mounting plate, a driving component fixedly mounted on the top of the connecting component, and a first mounting block fixedly mounted on the output end of the driving component; a connecting block, the connecting block being located inside the first mounting block, a first bolt engaging inside the connecting block, the first bolt engaging with the first mounting block, a support plate fixedly mounted on the inner side of the connecting block, a cylinder fixedly mounted at the bottom of the support plate, a top block fixedly mounted on the output end of the cylinder, a pad fixedly mounted on the top of the connecting block, a diagonal brace fixedly mounted on the top of the pad, and a pressing block above the pad.

[0005] The beneficial effects of adopting the above technical solution are as follows: When the hollow profile is placed above the extrusion block, the hollow profile will clamp onto the extrusion block. At this time, the start cylinder drives the top block to push upward through the output end. The top block will push the extrusion block upward. Then, the extrusion block will slide through the inclined surface and the inclined support block to slide to both sides of the inclined support block, thereby squeezing and fitting the extrusion block against the inner wall of the hollow profile, so that the extrusion block clamps and fixes the hollow profile. At the same time, since the length of the extrusion block is equal to that of the hollow profile, the inner wall of the hollow profile is fully supported, so that no deformation will occur.

[0006] As a preferred embodiment of this utility model, the surface of the extrusion block is provided with an inclined surface, the inclined support block is in the shape of an inverted trapezoid, and the inclined surface contacts the outer side of the inclined support block.

[0007] The beneficial effects of adopting the above technical solution are: the inclined support block and the inclined surface come into contact, and when the extrusion block is pushed upward, the inclined support block and the inclined surface are slidably connected, so that the extrusion block is squeezed outward by the inclined support block, thereby achieving the effect of the extrusion block supporting the hollow profile.

[0008] As a preferred embodiment of this utility model, a hollow profile is provided above the extrusion block, and the interior of the hollow profile is hollow.

[0009] The beneficial effects of adopting the above technical solution are: the hollow profile is stuck above the extrusion block, and at the same time, the two sides of the second bolt contact the extrusion block, so that the extrusion block extrudes and clamps the hollow profile to achieve the effect of fixing.

[0010] As a preferred embodiment of this utility model, a positioning plate is fixedly installed above the support plate, the output end of the cylinder passes through the interior of the positioning plate, and the top block is located above the positioning plate.

[0011] The beneficial effects of adopting the above technical solution are: the positioning plate positions the top block, allowing the top block to move up and down, thereby achieving the effect of pushing the extrusion block upward.

[0012] As a preferred embodiment of this utility model, a second bolt is inserted into the interior of the inclined support block, and the second bolt engages with the pad block.

[0013] The beneficial effect of adopting the above technical solution is that when the diagonal brace needs to be installed, the second bolt is passed through the inside of the diagonal brace and then engaged with the pad, so that the diagonal brace is fixed above the pad, achieving the effect of maintaining fixation.

[0014] As a preferred embodiment of this utility model, there are two connecting blocks, both of which are located above the mounting plate. A second mounting block is fixedly installed on the outer side of the connecting block that is away from the first mounting block. The support plate is located in the middle of the second mounting block and the first mounting block.

[0015] The beneficial effects of adopting the above technical solution are: the second mounting block is connected to the external device, and the second mounting block is located above the mounting plate. Its main function is to cooperate with the first mounting block to install the connecting block and keep the device in a horizontal state.

[0016] As a preferred embodiment of the present invention, the driving component is located in front of the first mounting block, and the driving component is fixedly connected to the first mounting block through the output end. The extrusion block has a cavity inside, and the cavity is located above the pad block.

[0017] The beneficial effects of adopting the above technical solution are: the start-up drive component drives the first mounting block to rotate through the output end. When the hollow profile is fixed above the extrusion block, the first mounting block has rotational freedom, so that different surfaces of the hollow profile can be adjusted to facilitate the processing of the hollow profile. The main function of the cavity is to give the extrusion block a movable space to achieve the effect of just extrusion and clamping.

[0018] As a preferred embodiment of this utility model, there are three cylinders and three top blocks. The three cylinders are located at the bottom of the support plate, and the three top blocks are located above the support plate. There are two extrusion blocks, which are located on the left and right sides of the inclined support block, respectively.

[0019] The beneficial effects of adopting the above technical solution are: the three cylinders drive the three top blocks to push upwards respectively, so that the force on the two extrusion blocks is balanced and the warping of the edges is prevented. At the same time, the two extrusion blocks are slidably connected to the inclined support block through the inclined surface, so that after the two extrusion blocks move upwards, they change to horizontal movement and move in opposite directions, so as to achieve the effect of extruding and fixing the interior of the hollow profile. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting block structure of this utility model; Figure 3 This is a schematic diagram of the extrusion block structure of this utility model; Figure 4 This is a schematic diagram of the top block structure of this utility model; Figure 5 This is a schematic diagram of the pad structure of this utility model. Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This is a schematic diagram of the mounting plate structure of this utility model; Figure 8 This utility model Figure 7 Enlarged schematic diagram of the structure at point B; Figure 9 This is a side view of the overall structure of this utility model; Figure 10 This is a partial structural cross-sectional view of the present invention; Figure 11 This is a cross-sectional view of the inclined support block structure of this utility model.

[0021] In the diagram: 1. Mounting plate; 2. Connecting assembly; 3. Drive assembly; 4. First mounting block; 5. Connecting block; 6. First bolt; 7. Support plate; 8. Cylinder; 9. Top block; 10. Pad block; 11. Diagonal brace block; 12. Extrusion block; 13. Inclined surface; 14. Hollow profile; 15. Positioning plate; 16. Second bolt; 17. Second mounting block; 18. Cavity. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 11 As shown, this utility model provides an outwardly expanding limiting fixture for hollow profiles, comprising: a mounting plate 1, a connecting component 2 fixedly mounted on the top of the mounting plate 1, a driving component 3 fixedly mounted on the top of the connecting component 2, a first mounting block 4 fixedly mounted on the output end of the driving component 3; a connecting block 5, the connecting block 5 being located inside the first mounting block 4, a first bolt 6 engaging inside the connecting block 5, the first bolt 6 engaging with the first mounting block 4, a support plate 7 fixedly mounted on the inner side of the connecting block 5, a cylinder 8 fixedly mounted on the bottom of the support plate 7, a top block 9 fixedly mounted on the output end of the cylinder 8, a pad block 10 fixedly mounted on the top of the connecting block 5, a diagonal brace 11 fixedly mounted on the top of the pad block 10, and a pressing block 12 provided above the pad block 10.

[0024] The beneficial effects of adopting the above technical solution are as follows: When the hollow profile 14 is placed above the extrusion block 12, the hollow profile 14 will clamp the extrusion block 12. At this time, the starting cylinder 8 drives the top block 9 to push upward through the output end. The top block 9 will push the extrusion block 12 upward. At this time, the extrusion block 12 will slide through the inclined surface 13 and the inclined support block 11 to slide to both sides of the inclined support block 11, so that the extrusion block 12 is squeezed and adhered to the inner wall of the hollow profile 14, so that the extrusion block 12 clamps and fixes the hollow profile 14. At the same time, since the length of the extrusion block 12 is equal to that of the hollow profile 14, the inner wall of the hollow profile 14 is fully supported, so that no deformation will occur.

[0025] The surface of the extrusion block 12 is provided with an inclined surface 13, and the inclined support block 11 is in the shape of an inverted trapezoid. The inclined surface 13 contacts the outer side of the inclined support block 11.

[0026] The beneficial effects of adopting the above technical solution are: the inclined support block 11 and the inclined surface 13 come into contact, and when the extrusion block 12 is pushed upward, the inclined support block 11 and the inclined surface 13 are slidably connected, so that the extrusion block 12 is squeezed outward by the inclined support block 11, thereby achieving the effect of the extrusion block 12 supporting the hollow profile 14.

[0027] Among them, a hollow profile 14 is provided above the extrusion block 12, and the interior of the hollow profile 14 is hollow.

[0028] The beneficial effects of adopting the above technical solution are: the hollow profile 14 is stuck above the extrusion block 12, and at the same time, the two sides of the second bolt 16 contact the extrusion block 12, so that the extrusion block 12 extrudes and clamps the hollow profile 14 to achieve the effect of fixing.

[0029] A positioning plate 15 is fixedly installed above the support plate 7, the output end of the cylinder 8 passes through the interior of the positioning plate 15, and the top block 9 is located above the positioning plate 15.

[0030] The beneficial effect of adopting the above technical solution is that the positioning plate 15 positions the top block 9, so that the top block 9 can move up and down, thereby achieving the effect of pushing the extrusion block 12 upward.

[0031] The diagonal brace 11 has a second bolt 16 inserted inside, which engages with the pad 10.

[0032] The beneficial effect of adopting the above technical solution is that when it is necessary to install the diagonal brace 11, the second bolt 16 is passed through the inside of the diagonal brace 11, and then the second bolt 16 is engaged with the pad 10, so that the diagonal brace 11 is fixed above the pad 10, thereby achieving the effect of maintaining fixation.

[0033] There are two connecting blocks 5, both of which are located above the mounting plate 1. A second mounting block 17 is fixedly installed on the outer side of the connecting block 5 that is away from the first mounting block 4. The support plate 7 is located in the middle of the second mounting block 17 and the first mounting block 4.

[0034] The beneficial effects of adopting the above technical solution are: the second mounting block 17 is connected to the external device, and the second mounting block 17 is located above the mounting plate 1. Its main function is to cooperate with the first mounting block 4 to install the connecting block 5, so as to keep the device in a horizontal state.

[0035] The drive component 3 is located in front of the first mounting block 4, and the drive component 3 is fixedly connected to the first mounting block 4 through the output end. The extrusion block 12 has a cavity 18 inside, and the cavity 18 is located above the pad block 10.

[0036] The beneficial effects of adopting the above technical solution are: the start-up drive component 3 drives the first mounting block 4 to rotate through the output end. When the hollow profile 14 is fixed above the extrusion block 12, the first mounting block 4 has rotational freedom, so that different surfaces of the hollow profile 14 can be adjusted to facilitate the processing of the hollow profile 14. The main function of the cavity 18 is to give the extrusion block 12 a movable space to achieve the effect of just extrusion and clamping.

[0037] There are three cylinders 8 and three top blocks 9. The three cylinders 8 are located at the bottom of the support plate 7, and the three top blocks 9 are located above the support plate 7. There are two extrusion blocks 12, which are located on the left and right sides of the inclined support block 11, respectively.

[0038] The beneficial effects of adopting the above technical solution are: the three cylinders 8 drive the three top blocks 9 to push upward, so that the force on the two extrusion blocks 12 is balanced, preventing the edge from warping. At the same time, the two extrusion blocks 12 are slidably connected to the inclined support block 11 through the inclined surface 13, so that after the two extrusion blocks 12 move upward, they change to horizontal movement and move in opposite directions, so as to achieve the effect of extruding and fixing the interior of the hollow profile 14.

[0039] Working principle and usage process of this utility model: First, a support plate 7 is fixedly installed inside the connecting block 5. A cylinder 8 is fixedly installed at the bottom of the support plate 7. A top block 9 is fixedly installed at the output end of the cylinder 8. A pad block 10 is fixedly installed above the connecting block 5. A diagonal brace 11 is fixedly installed above the pad block 10. An extrusion block 12 is provided above the pad block 10. When the hollow profile 14 is placed above the extrusion block 12, the hollow profile 14 will clamp onto the extrusion block 12. At this time, the cylinder 8 is activated to drive the top block 9 through its output end. When pushed upwards, the top block 9 will push the extrusion block 12 upwards. At this time, the extrusion block 12 will slide through the inclined surface 13 and the inclined support block 11, so that the extrusion block 12 slides to both sides of the inclined support block 11, thereby extruding and fitting the extrusion block 12 against the inner wall of the hollow profile 14, so that the extrusion block 12 clamps and fixes the hollow profile 14. At the same time, since the length of the extrusion block 12 is equal to that of the hollow profile 14, the inner wall of the hollow profile 14 is fully supported, so that no deformation occurs. Secondly, since the surface of the extrusion block 12 is provided with an inclined surface 13 and the inclined support block 11 is inverted trapezoidal, and the inclined surface 13 contacts the outer side of the inclined support block 11, when the extrusion block 12 is pushed upward by the top block 9, the inclined support block 11 and the inclined surface 13 are slidably connected, so that the extrusion block 12 is pressed outward by the inclined support block 11, thereby achieving the effect of the extrusion block 12 supporting the hollow profile 14. Finally, since the first mounting block 4 is fixedly installed at the output end of the drive component 3, the drive component 3 is started to drive the first mounting block 4 to rotate through the output end. When the hollow profile 14 is fixed above the extrusion block 12, the first mounting block 4 has a degree of rotational freedom, so that different surfaces of the hollow profile 14 can be adjusted to facilitate the processing of the hollow profile 14.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outwardly expanding limiting fixture for hollow profiles, characterized in that, include: A mounting plate is provided, a connecting component is fixedly mounted on the top of the mounting plate, a driving component is fixedly mounted on the top of the connecting component, and a first mounting block is fixedly mounted on the output end of the driving component. A connecting block is located inside the first mounting block. A first bolt is engaged inside the connecting block and engages with the first mounting block. A support plate is fixedly installed inside the connecting block. A cylinder is fixedly installed at the bottom of the support plate. A top block is fixedly installed at the output end of the cylinder. A pad is fixedly installed above the connecting block. A diagonal brace is fixedly installed above the pad. A pressing block is provided above the pad.

2. The outwardly expanding limiting fixture for hollow profiles according to claim 1, characterized in that: The surface of the extrusion block is provided with an inclined surface, and the inclined support block is in the shape of an inverted trapezoid, with the inclined surface in contact with the outer side of the inclined support block.

3. The outwardly expanding limiting fixture for hollow profiles according to claim 2, characterized in that: A hollow profile is provided above the extrusion block, and the interior of the hollow profile is hollow.

4. The outwardly expanding limiting fixture for hollow profiles according to claim 1, characterized in that: A positioning plate is fixedly installed above the support plate, the output end of the cylinder passes through the interior of the positioning plate, and the top block is located above the positioning plate.

5. The outwardly expanding limiting fixture for hollow profiles according to claim 1, characterized in that: A second bolt is inserted inside the diagonal brace block, and the second bolt engages with the pad block.

6. The outwardly expanding limiting fixture for hollow profiles according to claim 1, characterized in that: There are two connecting blocks, both of which are located above the mounting plate. A second mounting block is fixedly installed on the outer side of the connecting block furthest from the first mounting block. The support plate is located in the middle of the second mounting block and the first mounting block.

7. The outwardly expanding limiting fixture for hollow profiles according to claim 1, characterized in that: The drive component is located in front of the first mounting block, and the drive component is fixedly connected to the first mounting block through the output end. The extrusion block has a cavity inside, and the cavity is located above the pad block.

8. The outwardly expanding limiting fixture for hollow profiles according to claim 2, characterized in that: There are three cylinders and three top blocks. The three cylinders are located at the bottom of the support plate, and the three top blocks are located above the support plate. There are two extrusion blocks, which are located on the left and right sides of the inclined support block, respectively.

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