Clamp structure

Abstract

The utility model discloses a clamp structure, which belongs to the technical field of cutting machine clamps, and comprises a bottom plate, a limiting table, a limiting block and a locking seat, push rods are rotationally mounted on the sides, away from the limiting tables, of the limiting blocks; the locking base is fixed to the end, away from the limiting table, of the bottom plate. The polished rod section of the push rod penetrates through the locking base. And the locking seat is provided with a quick locking device for limiting the movement of the polished rod section of the push rod in the locking seat. By designing the locking seat, the push rod and the threaded part, the clamp has two clamping modes, one mode is that the push rod is rapidly fixed on the locking seat through the rapid locking device, so that the distance between the limiting block and the limiting table is maintained, and rapid limiting of a workpiece is formed; according to the other mode, the threaded section of the push rod is in threaded fit with the threaded part on the locking seat, the push rod can be driven to move by rotating the push rod at the moment, and the limiting block can be matched with the limiting table to clamp the workpiece more stably.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine clamping technology, and specifically to a clamping structure. Background Technology

[0002] As an important tool for positioning and clamping workpieces, the performance of fixtures directly affects machining accuracy and production efficiency. However, existing fixture structures still have some shortcomings. For example, the clamping method is limited, generally employing a vise structure, meaning the workpiece can only be clamped by rotating a lead screw to move the clamping part. This makes it impossible to quickly clamp workpieces according to their dimensions.

[0003] Therefore, this utility model proposes a clamp structure. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a clamping structure that can flexibly adjust the way workpieces are clamped according to actual needs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a clamp structure, comprising:

[0006] Base plate;

[0007] A limiting platform, which is fixed to one end of the base plate;

[0008] A limiting block, wherein a push rod is rotatably mounted on the side of the limiting block away from the limiting platform, the push rod having a smooth section and a threaded section;

[0009] A locking seat is fixed to the end of the base plate away from the limiting platform. The smooth rod section of the push rod passes through the locking seat. A threaded part is provided on the side of the locking seat away from the limiting block. The threaded part is threadedly engaged with the threaded section. The locking seat is provided with a quick-locking device for restricting the movement of the smooth rod section of the push rod in the locking seat.

[0010] Preferably, the quick-lock device includes:

[0011] A rotating shaft is rotatably mounted on a locking seat. The rotating shaft is perpendicular to the push rod, and a drive groove is provided on the portion of the rotating shaft located inside the locking seat.

[0012] A pressure rod, which is fixed to one end of the rotating shaft that extends out of the locking seat;

[0013] The locking seat has a sliding groove that communicates with the push rod. The block is slidably installed in the sliding groove. The sliding direction of the block in the sliding groove is parallel to the axis of the rotating shaft. The block is slidably engaged with the drive groove.

[0014] A locking block, which is slidably installed in a groove between the push rod and the stop block;

[0015] A spring, which is located in a groove between the locking block and the abutment block.

[0016] Preferably, a baffle is bolted onto the locking seat, the baffle being used to seal the abutment block in the groove.

[0017] Preferably, the push rod further has a positioning section, which is located on the side of the threaded section away from the smooth rod section. A turntable is fitted on the positioning section, and the push rod rotates when the turntable rotates.

[0018] Preferably, the turntable has a blind hole on its circumferential surface for connecting a handle.

[0019] Preferably, the threaded portion is a threaded sleeve, which is fixed to the side of the locking seat away from the limiting platform by bolts.

[0020] Preferably, a through groove is provided on the base plate, a limiting piece is slidably installed in the through groove, and a bolt is installed on the locking seat, one end of the bolt being threadedly engaged with the limiting piece.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model, through the design of a locking seat, push rod, and threaded part, enables the fixture to have two clamping methods. One method is to quickly fix the push rod on the locking seat using a quick-locking device, thereby maintaining the distance between the limiting block and the limiting stage, forming a rapid limiting of the workpiece. The other method is to thread the threaded section of the push rod with the threaded part on the locking seat. In this case, rotating the push rod will drive the push rod to move, allowing the limiting block to cooperate with the limiting stage to clamp the workpiece more securely, ensuring that the clamping force of the fixture is stable and reliable. Users can freely adjust the usage method of the fixture according to actual needs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional view of the overall structure of a clamping structure provided in an embodiment of the present utility model.

[0025] Figure 2 This is a top view of the overall structure of this utility model.

[0026] Figure 3 for Figure 2 Sectional view at point AA.

[0027] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0028] Figure 5 This is a perspective view of the push rod when the quick-lock device is used to fix the push rod according to this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Base plate, 2. Limiting platform, 3. Limiting block, 4. Push rod, 5. Smooth rod section, 6. Threaded section, 7. Locking seat, 8. Rotary shaft, 9. Drive groove, 10. Pressure rod, 11. Abutment block, 12. Slide groove, 13. Locking block, 14. Spring, 15. Baffle, 16. Positioning section, 17. Turntable, 18. Blind hole, 19. Threaded sleeve, 20. Through groove, 21. Limiting piece. Detailed Implementation

[0031] 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.

[0032] Example 1:

[0033] like Figures 1 to 5 As shown, Embodiment 1 of this utility model provides a clamping structure, which mainly consists of a base plate 1, a limiting platform 2, a limiting block 3, a push rod 4, a locking seat 7, and a quick-locking device. The base plate 1 serves as the supporting foundation of the entire structure and can be fixed to the cutting platform with bolts. The limiting platform 2 is fixed to one end of the base plate 1 with two bolts for initial positioning of the object to be clamped. The other end of the base plate 1 is provided with a locking seat 7, which is also fixed to the base plate 1 with bolts.

[0034] like Figure 5As shown, the push rod 4 can be divided into three parts: a smooth section 5, a threaded section 6, and a positioning section 16. The smooth section 5 has a smaller diameter, and a through hole is provided inside the locking seat 7 for the smooth section 5 to pass through, allowing it to slide on the locking seat 7. A limiting block 3 is rotatably mounted on the end of the push rod 4 near the limiting platform 2, with its bottom surface touching the upper surface of the base plate 1. On the side of the locking seat 7 away from the limiting block 3, a threaded sleeve 19 is bolted on as the threaded part. The internal thread of the threaded sleeve 19 matches the threaded section 6 of the push rod 4. When the push rod 4 is pushed, causing the threaded section 6 of the push rod 4 to be threaded onto the threaded sleeve 19, rotating the push rod 4 generates a strong clamping force, causing the limiting block 3 to clamp the workpiece in conjunction with the limiting platform 2. To facilitate the rotation of the push rod 4, a turntable 17 is also fitted onto the positioning section 16 of the push rod 4. The cross-section of the positioning section 16 is non-circular, and the turntable 17 rotates synchronously with the push rod 4 via a key connection or other means. The user can manually rotate the turntable 17 to rotate the push rod 4. If rotating the turntable 17 is too difficult, a blind hole 18 is also provided on the circumference of the turntable 17. The user can connect a handle to the blind hole 18, and rotate the push rod 4 by rotating the handle, so that the limit block 3 cooperates with the limit table 2 to clamp the workpiece.

[0035] Considering that threaded engagement does not provide a buffering effect and sometimes a large clamping force is not required, this invention also incorporates a quick-locking device on the locking seat 7. The quick-locking device can quickly lock or release the smooth rod section 5 of the push rod 4. Thus, after manually pushing the limiting block 3 to press against the workpiece, the quick-locking device can be used to fix the position of the push rod 4, achieving workpiece clamping and improving operational efficiency.

[0036] Example 2:

[0037] Based on Embodiment 1, the quick-lock device designed in this utility model includes components such as a rotating shaft 8, a pressure rod 10, a stop block 11, a locking block 13, and a spring 14. Figures 2 to 4 As shown, the rotating shaft 8 is perpendicular to the push rod 4 and rotatably mounted on the locking seat 7. A drive groove 9, spirally surrounding the rotating shaft 8, is formed on its surface. A pressure rod 10 is fixed to the end of the rotating shaft 8 extending out of the locking seat 7, allowing the user to rotate the rotating shaft 8 via the pressure rod 10. A sliding groove 12 within the locking seat 7 communicates with the push rod 4. A stop block 11 slides axially along the rotating shaft 8 within the sliding groove 12 and is slidably engaged with the drive groove 9. Thus, when the pressure rod 10 is rotated, the rotating shaft 8 rotates, and the stop block 11 moves within the sliding groove 12 via the drive groove 9.

[0038] The locking block 13 is slidably installed in the groove 12 between the push rod 4 and the abutment block 11. The spring 14 is placed between the locking block 13 and the abutment block 11 to push the locking block 13 towards the push rod 4. When the abutment block 11 moves towards the push rod 4, the abutment block 11 compresses the spring 14, and the spring 14 pushes the locking block 13 to press against the push rod 4, thereby fixing the push rod 4 on the locking seat 7. Because the spring 14 is used to elastically clamp the push rod 4, when the workpiece is subjected to excessive force, the spring 14 can be compressed, allowing the push rod 4 to move on the locking seat 7.

[0039] To further secure the quick-lock device, a baffle 15 is bolted onto the locking seat 7. The baffle 15 effectively limits the movement range of the stop block 11 in the slide groove 12, preventing it from falling out of the slide groove 12.

[0040] Example 3:

[0041] Based on the above embodiments, this utility model aims to improve the adaptability and flexibility of the clamp, such as... Figure 3 As shown, a through groove 20 is also provided on the base plate 1, and a limiting piece 21 is slidably installed in the through groove 20. A bolt is provided on the locking seat 7, and the bolt thread passes through the locking seat 7 and is threadedly engaged with the limiting piece 21 in the base plate 1. By loosening the bolt, the limiting piece 21 can move in the through groove 20, thereby changing the position of the locking seat 7 on the base plate 1. When the bolt is tightened, the limiting piece 21 will press against the inner wall of the through groove 20, thereby fixing the position of the locking seat 7 on the base plate 1, and thus changing the movable range of the limiting block 3 on the base plate 1.

[0042] Working principle: The fixture designed in this utility model has two usage modes. The first mode is to use a quick-lock device, rotate the pressure rod 10, so that the rotating shaft 8 drives the abutment block 11 to move, and then the spring 14 presses against the locking block 13, so that the locking block 13 restricts the movement of the push rod 4, and fixes the limiting block 3 on the base plate 1, which works in conjunction with the limiting table 2 to quickly clamp the workpiece. The second mode is to rotate the threaded section 6 onto the threaded sleeve 19, and use the thread to adjust the position of the push rod 4 on the locking seat 7, so as to provide a stronger clamping force for the limiting block 3 and fix the workpiece more firmly.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A clamp structure, characterized in that, include: Base plate (1); A limiting platform (2) is fixed to one end of the base plate (1); A limiting block (3) is provided, and a push rod (4) is rotatably mounted on the side of the limiting block (3) away from the limiting platform (2). The push rod (4) has a smooth rod section (5) and a threaded section (6). Locking seat (7) is fixed to one end of the base plate (1) away from the limiting platform (2). The smooth rod section (5) of the push rod (4) passes through the locking seat (7). The side of the locking seat (7) away from the limiting block (3) is provided with a threaded part, which is threadedly engaged with the threaded section (6). The locking seat (7) is provided with a quick-locking device for restricting the movement of the smooth rod section (5) of the push rod (4) in the locking seat (7).

2. The clamp structure as described in claim 1, characterized in that, The quick-lock device includes: A rotating shaft (8) is rotatably mounted on a locking seat (7). The rotating shaft (8) is perpendicular to the push rod (4). A drive groove (9) is provided on the part of the rotating shaft (8) located inside the locking seat (7). A pressure rod (10) is fixed to one end of the rotating shaft (8) that extends out of the locking seat (7); The locking seat (7) has a sliding groove (12) inside, which is connected to the push rod (4). The abutment (11) is slidably installed in the sliding groove (12). The sliding direction of the abutment (11) in the sliding groove (12) is parallel to the axis of the rotating shaft (8). The abutment (11) is slidably engaged with the drive groove (9). Locking block (13), which is slidably installed in the groove (12) between the push rod (4) and the stop block (11); A spring (14) is located in a groove (12) between the locking block (13) and the abutment block (11).

3. A clamp structure as described in claim 2, characterized in that, A baffle (15) is bolted onto the locking seat (7), and the baffle (15) is used to seal the abutment (11) in the groove (12).

4. A clamp structure as described in claim 1, characterized in that, The push rod (4) also has a positioning section (16), which is located on the side of the threaded section (6) away from the smooth rod section (5). A turntable (17) is sleeved on the positioning section (16), and the turntable (17) drives the push rod (4) to rotate when it rotates.

5. A clamp structure as described in claim 4, characterized in that, The turntable (17) has a blind hole (18) on its circumference for connecting the handle.

6. A clamp structure as described in claim 1, characterized in that, The threaded part is a threaded sleeve (19), which is fixed to the side of the locking seat (7) away from the limiting platform (2) by bolts.

7. A clamp structure as described in claim 1, characterized in that, A through groove (20) is provided on the base plate (1), and a limiting piece (21) is slidably installed in the through groove (20). A bolt is installed on the locking seat (7), and one end of the bolt is threadedly engaged with the limiting piece (21).

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