A rail clamping mechanism

Abstract

The utility model relates to linear guide rail technical field, concretely to a kind of line rail clamp mechanism, comprising: track, the upper portion of track is provided with sliding seat;The middle part of brake seat is provided with through slot, the surface of driving rod is fixed with the anti-rotation convex strip corresponding and adaptation of anti-rotation groove, one end of driving rod is threadedly connected with support disc, and the other end is rotatably connected with jaw disc, the side of support disc is provided with fixed disc, and fixed disc is fixedly connected with brake seat, and the middle part of fixed disc is rotatably installed with adjusting bolt;Beneficial effects are that: by the middle part of through slot inner cavity mobile penetration is provided with strip-shaped toothed plate, the upper and lower sides of strip-shaped toothed plate are both provided with gear slot, and the upper and lower sides are both provided with outer gear ring with meshing, strip-shaped toothed plate slides along the length direction of itself, can drive outer gear ring and driving rod rotation, since support disc position is fixed, thus driving rod can drive jaw disc to translate when rotating, realize the clamping brake of track, to avoid that sliding seat shakes when positioning.

Description

Technical Field

[0001] This utility model relates to the field of linear guide technology, specifically a linear guide clamping mechanism. Background Technology

[0002] Linear guides, also known as linear guides or linear rails, are a type of guiding device used in mechanical equipment to achieve high-precision, low-friction linear motion. Their core function is to support and guide moving parts (such as sliders) to move smoothly and accurately along a fixed track.

[0003] In the prior art, Chinese utility model with publication number CN220378706U discloses an automatic clamping device for linear guide rails. A first clamping mechanism and a second clamping mechanism are symmetrically installed inside a first housing, and both the first clamping mechanism and the second clamping mechanism pass through the first housing. The first clamping mechanism and the second clamping mechanism have the same structure. The device using the guide rail has the effect of improving rigidity and damping vibration.

[0004] Currently, in traditional linear guides, the position of the sliding seat is adjusted and controlled by the cooperation of a motor and a screw during use, with braking achieved by the motor. However, due to manufacturing errors, there is a certain gap between the sliding seat and the screw, resulting in poor positioning of the sliding seat and a tendency to vibrate. Therefore, this invention proposes a linear guide clamping mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a linear guide clamping mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linear guide clamping mechanism, comprising:

[0007] A track, with a sliding seat above it, and a cylinder and a brake seat fixedly installed on the lower side of the side edge of the sliding seat;

[0008] The brake seat has a through groove in the middle, and a strip toothed plate is movably installed through the inner cavity of the through groove. The strip toothed plate has tooth grooves on both the upper and lower sides, and external toothed rings are engaged on both the upper and lower sides. A drive rod is movably installed through the middle of the external toothed ring. An anti-rotation groove is provided on the inner wall of the external toothed ring. An anti-rotation protrusion corresponding to and adapted to the anti-rotation groove is fixed on the surface of the drive rod. One end of the drive rod is threaded to a support plate, and the other end is rotatably connected to a jaw plate. A fixed plate is provided on one side of the support plate, and the fixed plate is fixedly connected to the brake seat. An adjusting bolt is rotatably installed in the middle of the fixed plate, and one end of the adjusting bolt is threaded into the inside of the support plate.

[0009] Preferably, one end of the toothed strip is fixed with a sliding block, and one end of the sliding block is movably inserted into and adapted to the inner cavity of the through groove.

[0010] Preferably, a piston is fixed to the other end of the sliding block, and the piston is fixedly connected to the movable end of the cylinder.

[0011] Preferably, the jaw disc faces the side of the track, and the surface of the jaw disc is provided with a wear-resistant layer.

[0012] Preferably, a threaded cylinder is fixed to the side of the support plate, and one end of the drive rod is inserted into the inner cavity of the threaded cylinder and threadedly connected to it through a threaded groove.

[0013] Preferably, a limiting block is fixed to the other end of the drive rod, and the diameter of the limiting block is larger than the diameter of the drive rod. The limiting block is rotatably installed inside the jaw disc.

[0014] Preferably, both sides of the external toothed ring are fixed with annular flanges, and a positioning sleeve is rotatably installed on the outer side of the annular flange, and the positioning sleeve is fixed to the inner wall of the through groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a strip-shaped toothed plate that moves through the center of the inner cavity of a through groove. The strip-shaped toothed plate has toothed grooves on both its upper and lower sides, and external toothed rings mesh on both sides. A drive rod passes through the center of the external toothed rings. One end of the drive rod is threaded to a support plate, and the other end is rotatably connected to a jaw plate. The strip-shaped toothed plate slides along its length, driving the external toothed rings and the drive rod to rotate. Because the support plate is fixed, the rotation of the drive rod causes the jaw plate to move horizontally, achieving clamping and braking of the track, thus preventing the sliding seat from shaking during positioning. Furthermore, the support plate is installed inside the fixed plate cavity, and the two are connected by an adjusting bolt. Tightening the adjusting bolt allows the support plate to move horizontally, which in turn drives the drive rod and the jaw plate to move horizontally, thereby adjusting the distance between the jaw plate and the track, improving positioning and anti-shaking effects. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the brake seat structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the meshing structure of the strip toothed plate and the external toothed ring of this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection between the support disc, drive rod, and jaw disc of this utility model.

[0021] Figure 5 This is a three-dimensional schematic diagram of the support disk structure of this utility model;

[0022] Figure 6 This is an exploded view of the external toothed ring structure of this utility model;

[0023] Figure 7 This is a three-dimensional schematic diagram of the fixed disk structure of this utility model.

[0024] In the diagram: 1. Track; 2. Sliding seat; 3. Cylinder; 4. Brake seat; 41. Through groove; 42. Sliding block; 43. Strip toothed plate; 44. Piston; 5. External toothed ring; 51. Anti-rotation groove; 52. Annular flange; 53. Positioning sleeve; 6. Drive rod; 61. Limiting block; 62. Threaded groove; 63. Anti-rotation protrusion; 7. Jaw disc; 8. Support disc; 81. Threaded cylinder; 9. Fixed disc; 91. Adjusting bolt. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1 to 7 This utility model provides a technical solution:

[0027] Example 1: A linear guide clamping mechanism, comprising: a track 1.

[0028] Specifically, a sliding seat 2 is provided above the track 1, and a cylinder 3 and a brake seat 4 are fixedly installed on the lower side of the side edge of the sliding seat 2. The movable end of the cylinder 3 can extend and retract.

[0029] Secondly, a through groove 41 is provided in the middle of the brake seat 4. A strip toothed plate 43 is movably installed through the inner cavity of the through groove 41. The strip toothed plate 43 can slide along its own length. The upper and lower sides of the strip toothed plate 43 are provided with tooth grooves, and the upper and lower sides are engaged with external toothed rings 5. When the strip toothed plate 43 slides, the two external toothed rings 5 ​​can keep synchronous and opposite rotation. A drive rod 6 is movably installed through the middle of the external toothed rings 5. An anti-rotation groove 51 is provided on the inner wall of the external toothed rings 5. The surface of the drive rod 6 is fixed with an anti-rotation protrusion 63 that corresponds to and matches the anti-rotation groove 51. The drive rod 6 can only slide relative to the external toothed rings 5 ​​along its own length, but will not rotate relative to the external toothed rings 5. Therefore, when the external toothed rings 5 ​​rotate, they can drive the drive rod 6 to rotate accordingly. A support plate 8 is threadedly connected to one end of the drive rod 6, and a jaw plate 7 is rotatably connected to the other end. The support plate 8 is self- The body remains in a fixed position. When the drive rod 6 rotates, the thread between the drive rod 6 and the support plate 8 drives the drive rod 6 to slide along its own length, thereby pushing the jaw plate 7 to move accordingly. Since the jaw plate 7 and the drive rod 6 are rotatably connected, the rotation of the drive rod 6 only pushes the jaw plate 7 to translate and does not cause the jaw plate 7 to rotate. In addition, the drive rod 6 and the brake seat 4 are movably connected through each other. The two drive rods 6 cooperate with each other to prevent the jaw plate 7 from rotating. Therefore, the jaw plate 7 only translates. When the jaw plate 7 moves and approaches the track 1, it can squeeze the side of the track 1 to achieve braking. A fixed plate 9 is provided on one side of the support plate 8, and the fixed plate 9 is fixedly connected to the brake seat 4. An adjusting bolt 91 is rotatably installed in the middle of the fixed plate 9. One end of the adjusting bolt 91 is threaded into the inside of the support plate 8. The structure of the adjusting bolt 91 is as follows. Figure 7 As shown, the adjusting bolt 91 and the fixed plate 9 maintain relative rotation and do not separate. When the adjusting bolt 91 rotates, the thread at the end of the adjusting bolt 91 can push the support plate 8 to translate, thereby adjusting the position of the support plate 8. This allows for the adjustment of the positions of the drive rod 6 and the jaw plate 7, preventing the jaw plate 7 from reducing its braking effect due to long-term wear.

[0030] To prevent the toothed strip 43 from tilting, this application also has a sliding block 42 fixed at one end of the toothed strip 43. One end of the sliding block 42 is movably inserted into and adapted to the inner cavity of the through groove 41. The sliding block 42 and the through groove 41 cooperate to restrict the sliding direction of the toothed strip 43, thereby preventing the toothed strip 43 from tilting.

[0031] In order to control the reciprocating sliding of the toothed strip 43, this application also has a piston 44 fixed at the other end of the sliding block 42. The piston 44 is fixedly connected to the movable end of the cylinder 3. When the movable end of the cylinder 3 extends or retracts, it can push the piston 44 to move, thereby driving the toothed strip 43 to reciprocate.

[0032] To prevent the jaw disc 7 from easily wearing out, the jaw disc 7 of this application is located on the side facing the track 1, and a wear-resistant layer is provided on the surface of the jaw disc 7. The wear-resistant layer on the surface of the jaw disc 7 can extend the service life of the jaw disc 7 and prevent the jaw disc 7 from easily wearing out.

[0033] To prevent the drive rod 6 from detaching from the support plate 8, this application also includes a threaded cylinder 81 fixed to the side of the support plate 8. One end of the drive rod 6 is inserted into the inner cavity of the threaded cylinder 81 and threadedly connected to it through the threaded groove 62. The threaded cylinder 81 increases the contact area between itself and the end of the threaded groove 62, thereby preventing the drive rod 6 from easily detaching from the support plate 8 when sliding along its own length. In addition, since the drive rod 6 is threadedly connected to the threaded cylinder 81, and the position of the support plate 8 is fixed by the adjusting bolt 91, the drive rod 6 can move along its own length while rotating.

[0034] In order to connect the drive rod 6 to the jaw disc 7, this application also has a limiting block 61 fixed at the other end of the drive rod 6, and the diameter of the limiting block 61 is larger than the diameter of the drive rod 6. The limiting block 61 is rotatably installed inside the jaw disc 7. The limiting block 61 is set to rotatably connect the drive rod 6 and the jaw disc 7, while avoiding the possibility of separation between the drive rod 6 and the jaw disc 7. That is to say, the drive rod 6 can drive the jaw disc 7 to move synchronously when it moves.

[0035] In order to install and position the external gear ring 5, this application also has annular flanges 52 fixed on both sides of the external gear ring 5. A positioning sleeve 53 is rotatably installed on the outer side of the annular flange 52 and the positioning sleeve 53 is fixed to the inner wall of the through groove 41. The annular flange 52 and the positioning sleeve 53 are mainly used to install and position the external gear ring 5, to prevent the external gear ring 5 from shifting in position along the length direction of the drive rod 6, and to prevent the meshing between the external gear ring 5 and the strip toothed plate 43 from disengaging.

[0036] 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 linear guide clamping mechanism, characterized in that: include: Track (1), a sliding seat (2) is provided above the track (1), and a cylinder (3) and a brake seat (4) are fixedly installed on the lower side of the side edge of the sliding seat (2). The brake seat (4) has a through groove (41) in the middle. A strip toothed plate (43) is movably inserted through the inner cavity of the through groove (41). The strip toothed plate (43) has tooth grooves on both the upper and lower sides and external toothed rings (5) meshing on both the upper and lower sides. A drive rod (6) is movably inserted through the middle of the external toothed ring (5). An anti-rotation groove (51) is opened on the inner wall of the external toothed ring (5). An anti-rotation protrusion (63) corresponding to and adapted to the anti-rotation groove (51) is fixed on the surface of the drive rod (6). One end of the drive rod (6) is threadedly connected to a support plate (8) and the other end is rotatably connected to a jaw plate (7). A fixed plate (9) is provided on one side of the support plate (8) and the fixed plate (9) is fixedly connected to the brake seat (4). An adjusting bolt (91) is rotatably installed in the middle of the fixed plate (9). One end of the adjusting bolt (91) is threaded into the inside of the support plate (8).

2. The linear guide clamping mechanism according to claim 1, characterized in that: One end of the strip toothed plate (43) is fixed with a sliding block (42), and one end of the sliding block (42) is movably inserted into the cavity of the through groove (41) and adapted to it.

3. The linear guide clamping mechanism according to claim 2, characterized in that: The other end of the sliding block (42) is fixed with a piston (44), which is fixedly connected to the movable end of the cylinder (3).

4. The linear guide clamping mechanism according to claim 3, characterized in that: The jaw disc (7) faces the side of the track (1), and the surface of the jaw disc (7) is provided with a wear-resistant layer.

5. A linear guide clamping mechanism according to claim 4, characterized in that: A threaded cylinder (81) is fixed to the side of the support plate (8), and one end of the drive rod (6) is inserted into the inner cavity of the threaded cylinder (81) and threadedly connected to it through the threaded groove (62).

6. A linear guide clamping mechanism according to claim 5, characterized in that: The other end of the drive rod (6) is fixed with a limiting block (61), and the diameter of the limiting block (61) is larger than the diameter of the drive rod (6). The limiting block (61) is rotatably installed inside the jaw disc (7).

7. A linear guide clamping mechanism according to claim 6, characterized in that: Both sides of the external toothed ring (5) are fixed with annular flanges (52), and a positioning sleeve (53) is rotatably installed on the outer side of the annular flange (52), and the positioning sleeve (53) is fixed to the inner wall of the through groove (41).

Images