A quick-clamping structure for a hydraulic drawing machine

Abstract

This utility model discloses a quick-clamping structure for a hydraulic drawing machine, belonging to the technical field of hydraulic drawing machines. The utility model includes a support base; two symmetrical first slides are provided within the support base; a through groove communicating with the first slides is provided on the left side of the support base; a driving component is installed within the first slides; a clamping assembly is installed in the through groove, and two symmetrical drawing heads are installed on the clamping assembly. When performing a tensile test on a metal billet, the support base is first installed on the hydraulic drawing machine, then the drawing heads are placed in the through groove and fixed with the clamping assembly. Subsequently, the metal billet is placed between the two drawing heads, and the driving component brings the drawing heads closer together until they contact and clamp the metal billet. The hydraulic drawing machine pulls the support base, applying tensile force to the metal billet to complete the tensile test.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic drawing machines, and in particular relates to a quick-clamping structure for hydraulic drawing machines. Background Technology

[0002] Pull-out tests can reveal the deformation behavior and fracture characteristics of metallic materials under different stress conditions, providing an important basis for optimizing production processes. In addition, pull-out tests can also reveal potential defects inside the metal, such as inclusions, pores, or abnormal grains, thus helping manufacturers to adjust material composition or processing parameters in a timely manner. This process is crucial for improving material performance and extending product lifespan. In engineering applications, many metal components, such as steel wires, pipes, or profiles, need to withstand tensile loads, making pull-out tests an important part of quality control. Hydraulic pull-out machines are used when performing pull-out tests on metal billets.

[0003] In the metal stretching process, existing hydraulic drawing machines generally rely on the drawing head to clamp the metal billet and then perform the stretching treatment. However, the drawing head is easily damaged after long-term use and needs to be replaced. However, existing hydraulic drawing machines cannot quickly complete the replacement of the drawing head, which will undoubtedly lead to a significant reduction in the efficiency of metal stretching tests. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides: a quick-clamping structure for a hydraulic drawing machine, including a bearing seat;

[0005] The support seat has two symmetrical first slides, and the left side of the support seat has a through groove that communicates with the first slides.

[0006] A drive component is installed inside the first slide rail;

[0007] The through slot is equipped with a snap-fit ​​assembly, on which two symmetrical pull-out heads are mounted.

[0008] As a preferred embodiment of the present invention, the snap-fit ​​assembly includes a first fixing plate that is slidably connected within the through groove;

[0009] The pull-out head is inserted into the first fixed plate, and a support frame is fixedly connected to one side of the first fixed plate;

[0010] Both the support frame and the pull head are provided with a second slide rail.

[0011] As a preferred embodiment of the present invention, a first slider is slidably connected within the first slide rail;

[0012] One end of the first slider is fixedly connected to a second fixing plate, and two symmetrical first springs are fixedly connected between the first slider and the support frame.

[0013] As a preferred embodiment of this utility model, both the second fixing plate and the puller head are provided with threaded holes, and bolts are connected to the threaded holes by threads.

[0014] As a preferred embodiment of the present invention, the driving component includes a first wedge block fixedly connected to one side of the first fixing plate;

[0015] A portion of the first wedge is located in the through groove, and the other half of the first wedge is located in the first slide rail;

[0016] A second wedge block that can contact the first wedge block is slidably connected inside the first slide rail, and a connecting frame is installed on the top of the second wedge block.

[0017] As a preferred embodiment of this utility model, an electric push rod is installed on the top of the bearing seat;

[0018] The output end of the electric push rod is fixedly connected to the connecting frame, and a second spring is installed between the first wedge and the inner wall of the bearing seat.

[0019] As a preferred embodiment of the present invention, a first connecting rod is slidably connected within the first slide rail;

[0020] One end of the first connecting rod passes through the bearing seat;

[0021] A limiting plate is installed at one end of the first connecting rod, and a third spring is fixedly connected to one side of the limiting plate;

[0022] The other end of the third spring is fixedly connected to the support.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] When conducting a tensile test on a metal billet, the bearing seat is first installed on the hydraulic drawing machine. Then, the drawing head is placed in the through slot and fixed with the clamping assembly. Subsequently, the metal billet is placed between the two drawing heads. The driving component moves the drawing heads closer to each other until they contact and clamp the metal billet. The hydraulic drawing machine pulls the bearing seat to apply tensile force to the metal billet, thus completing the tensile test. Attached Figure Description

[0025] Figure 1 This is a first-view perspective three-dimensional structural diagram of the quick-clamping structure of the hydraulic drawing machine provided in this embodiment of the utility model;

[0026] Figure 2This is a second-view perspective three-dimensional structural diagram of the quick-clamping structure of the hydraulic drawing machine provided in this embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the internal cross-sectional planar structure of the quick-clamping structure of the hydraulic drawing machine provided in this embodiment of the utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the drive component of the hydraulic drawing machine quick-clamping structure provided in this embodiment of the utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the snap-fit ​​component of the hydraulic drawing machine quick snap-fit ​​structure provided in this embodiment of the utility model.

[0030] In the diagram: 1. Bearing seat; 2. First slide rail; 3. Through groove; 4. Pull-out head; 5. First fixing plate; 6. Bearing frame; 7. Second slide rail; 8. First slider; 9. Second fixing plate; 10. First spring; 11. Threaded hole; 12. Bolt; 13. First wedge; 14. Second wedge; 15. Connecting frame; 16. Electric push rod; 17. Second spring; 18. First connecting rod; 19. Limiting plate; 20. Third spring. Detailed Implementation

[0031] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0032] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] Please see Figures 1 to 5 The present invention provides a quick-clamping structure for a hydraulic drawing machine, comprising a support seat 1; two symmetrical first slides 2 are provided in the support seat 1, and a through groove 3 communicating with the first slides 2 is provided on the left side of the support seat 1; a driving component is installed in the first slides 2; a clamping assembly is installed in the through groove 3, and two symmetrical drawing heads 4 are installed on the clamping assembly.

[0034] Using the above scheme: When performing a tensile test on a metal billet, first install the bearing seat 1 onto the hydraulic drawing machine, then place the drawing head 4 into the through groove 3 and fix it with the snap-fit ​​assembly. The metal billet is then placed between the two drawing heads 4. The driving component brings the drawing heads 4 closer to each other until they contact and clamp the metal billet. The hydraulic drawing machine then pulls the bearing seat 1 to apply tensile force to the metal billet, thus completing the tensile test.

[0035] Furthermore, the snap-fit ​​assembly includes a first fixing plate 5 slidably connected to the through groove 3; the pull head 4 is inserted into the first fixing plate 5, and a support frame 6 is fixedly connected to one side of the first fixing plate 5; both the support frame 6 and the pull head 4 are provided with a second slide rail 7.

[0036] Furthermore, a first slider 8 is slidably connected within the first slide rail 2; a second fixing plate 9 is fixedly connected to one end of the first slider 8, and two symmetrical first springs 10 are fixedly connected between the first slider 8 and the support frame 6.

[0037] Furthermore, both the second fixing plate 9 and the pulling head 4 are provided with threaded holes 11, and bolts 12 are threadedly connected to the threaded holes 11.

[0038] Using the above solution: In use, by inserting the pull head 4 into the first fixing plate 5, the elastic force of the first spring 10 pushes the first slider 8, causing the first slider 8 to move the second fixing plate 9 on it to the second slide 7 to a preset position. When the first slider 8 moves to the preset position, a part of the first slider 8 will enter the second slide 7 inside the pull head 4 to achieve a limit. By screwing the bolt 12 into the threaded hole 11 of the second fixing plate 9 and the pull head 4, the pull head 4 can be fixed in place. When it is necessary to replace the pull head 4, first remove the bolt 12, and then move the first slider 8 in the opposite direction to release the limit, thereby facilitating the replacement of the pull head 4.

[0039] Furthermore, the driving component includes a first wedge 13 fixedly connected to one side of the first fixing plate 5; a portion of the first wedge 13 is located in the through groove 3, and the other half of the first wedge 13 is located in the first slide rail 2; a second wedge 14 that can contact the first wedge 13 is slidably connected in the first slide rail 2, and a connecting bracket 15 is installed on the top of the second wedge 14.

[0040] Furthermore, an electric push rod 16 is installed on the top of the support seat 1; the output end of the electric push rod 16 is fixedly connected to the connecting frame 15, and a second spring 17 is installed between the first wedge block 13 and the inner wall of the support seat 1.

[0041] Furthermore, a first connecting rod 18 is slidably connected within the first slide rail 2; one end of the first connecting rod 18 passes through the bearing seat 1; a limiting plate 19 is installed at one end of the first connecting rod 18, and a third spring 20 is fixedly connected to one side of the limiting plate 19; the other end of the third spring 20 is fixedly connected to the bearing seat 1.

[0042] Using the above scheme: When it is necessary to use the pulling head 4 to clamp the metal billet, the output end of the electric push rod 16 extends, and the support frame 6 extends synchronously, pushing the second wedge 14 to move in the first slide rail 2. The movement of the second wedge 14 drives the first connecting rod 18 and the limiting plate 19 to move synchronously. During the movement, the limiting plate 19 compresses the third spring 20. When the second wedge 14 moves to the preset position, the second wedge 14 will contact the first wedge 13, causing the first wedge 13 to drive the first fixing plate 5 and the pulling head 4 to move closer to each other in the through groove 3, thereby clamping the metal billet.

[0043] It should be noted that after the metal billet completes the clamping test, the second wedge 14 moves in the opposite direction. At this time, the elasticity of the second spring 17 is used to drive the first wedge 13 to reset the first fixed plate 5 and the pull head 4 on it.

[0044] The working principle of this utility model:

[0045] When conducting a tensile test on a metal billet, the bearing seat 1 is first installed on the hydraulic drawing machine. The drawing head 4 is then inserted into the first fixed plate 5, and the elastic force of the first spring 10 pushes the first slider 8. This causes the first slider 8 to move the second fixed plate 9 within the second slide rail 7 to a preset position. Once the first slider 8 reaches the preset position, a portion of it enters the second slide rail 7 within the drawing head 4, achieving a limiting position. The drawing head 4 is then fixed in place by screwing the bolt 12 into the threaded holes 11 of the second fixed plate 9 and the drawing head 4. When the drawing head 4 needs to be replaced, the bolt 12 is first removed, and then the drawing head is moved in the opposite direction. The first slider 8 is moved to release the limit, thereby facilitating the replacement of the drawing head 4. When it is necessary to use the drawing head 4 to clamp the metal billet, the output end of the electric push rod 16 extends, and the support frame 6 extends synchronously, pushing the second wedge 14 to move in the first slide rail 2. The movement of the second wedge 14 drives the first connecting rod 18 and the limiting plate 19 to move synchronously. During the movement, the limiting plate 19 compresses the third spring 20. When the second wedge 14 moves to the preset position, the second wedge 14 will contact the first wedge 13, causing the first wedge 13 to drive the first fixing plate 5 and the drawing head 4 to move closer to each other in the through groove 3, thereby clamping the metal billet.

[0046] 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.

[0047] 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. A quick-clamping structure for a hydraulic drawing machine, characterized in that: Includes the support base (1); The bearing seat (1) has two symmetrical first slides (2) inside, and the left side of the bearing seat (1) has a through groove (3) that communicates with the first slides (2); A drive component is installed inside the first slide (2); The through slot (3) is equipped with a snap-fit ​​assembly, on which two symmetrical pull heads (4) are installed.

2. The quick-clamping structure for a hydraulic drawing machine as described in claim 1, characterized in that: The snap-fit ​​assembly includes a first fixing plate (5) that is slidably connected within the through groove (3); The pull head (4) is inserted into the first fixing plate (5), and a bearing frame (6) is fixedly connected to one side of the first fixing plate (5); Both the support frame (6) and the pulling head (4) are provided with a second slide (7).

3. The quick-clamping structure for a hydraulic drawing machine as described in claim 2, characterized in that: A first slider (8) is slidably connected inside the first slide rail (2); One end of the first slider (8) is fixedly connected to a second fixing plate (9), and two symmetrical first springs (10) are fixedly connected between the first slider (8) and the support frame (6).

4. The quick-clamping structure for a hydraulic drawing machine as described in claim 3, characterized in that: Both the second fixing plate (9) and the pulling head (4) are provided with threaded holes (11), and bolts (12) are connected to the threaded holes (11) by threads.

5. The quick-clamping structure for a hydraulic drawing machine as described in claim 2, characterized in that: The driving component includes a first wedge (13) fixedly connected to one side of the first fixing plate (5); A portion of the first wedge (13) is located in the through groove (3), and the other half of the first wedge (13) is located in the first slide (2); A second wedge (14) that can contact the first wedge (13) is slidably connected in the first slide (2), and a connecting frame (15) is installed on the top of the second wedge (14).

6. The quick-clamping structure for a hydraulic drawing machine as described in claim 5, characterized in that: An electric push rod (16) is installed on the top of the bearing seat (1); The output end of the electric push rod (16) is fixedly connected to the connecting frame (15), and a second spring (17) is installed between the first wedge (13) and the inner wall of the bearing seat (1).

7. The quick-clamping structure for a hydraulic drawing machine as described in claim 6, characterized in that: A first connecting rod (18) is slidably connected inside the first slide rail (2); One end of the first connecting rod (18) passes through the bearing seat (1); A limiting plate (19) is installed at one end of the first connecting rod (18), and a third spring (20) is fixedly connected to one side of the limiting plate (19); The other end of the third spring (20) is fixedly connected to the bearing seat (1).

Images