A clamping device for linear guide rail machining

Abstract

This utility model discloses a clamping device for machining linear guideways, belonging to the field of guideway clamping technology. The clamping device includes: a fixed base, a bidirectional screw, two movable blocks, a clamping assembly, and a limiting assembly. The fixed base is mounted on the machining table. The bidirectional screw drives the two movable blocks to move in opposite directions. The clamping assembly includes two rollers. The two movable blocks drive the clamping assembly to move closer together, clamping the guideway. When the limiting block is engaged inside the limiting cylinder, the teeth prevent the rollers from rotating, thus clamping the guideway. When the machining position of the guideway needs to be adjusted, the limiting block is moved upwards to disengage from the limiting cylinder. At this time, the rollers can drive the limiting cylinder to rotate, allowing the guideway to move linearly while clamped. This eliminates the need for repeated tightening and loosening of the clamps; simply releasing the limiting block allows the guideway to move, saving clamping time and improving machining efficiency.

Description

Technical Field

[0001] This utility model relates to the field of guide rail clamping technology, and more specifically, to a clamping device for processing linear guide rails. Background Technology

[0002] Fixtures for guide rail machining are specialized devices used to precisely position and fix guide rail workpieces on machine tools to ensure machining accuracy and efficiency. Machine tool guide rails, linear guide rails, etc., require high geometric accuracy (such as straightness, parallelism, flatness, etc.) and surface quality during the manufacturing process. The role of fixtures is to stably fix the workpieces so that they do not shift or deform during machining.

[0003] Chinese Patent Publication No. CN216882793U discloses a clamping structure for machining linear guides. This solution connects a limiting component to a slide groove, connects an adjusting device to the front of the upper end of a support and the upper end of the limiting component, and provides a slot at the rear of the upper end of the support. A clamping block is connected to the slot, and the linear guide is placed in the slot. By controlling the adjusting device, the linear guide can be clamped. The limiting component further limits and reinforces the adjusting device, thereby improving stability. A connecting post is connected to a designated position, inserted into an installation groove, and then reinforced by a fixing bolt, thus facilitating the installation and fixation of the device.

[0004] When machining long guide rails, if the machine is fixed and different positions of the guide rail need to be machined, the clamp needs to be loosened, the position adjusted, and then clamped again, which reduces the machining efficiency.

[0005] Therefore, a clamping device for machining linear guides is proposed to address the above problems. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] This invention provides a clamping device for machining linear guides, which can improve the problems existing in related technologies: the clamp will cover part of the surface of the guide rail. If the covered area is to be machined, the clamp needs to be released and the position adjusted before clamping again, which will reduce the machining efficiency.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] This application provides a clamping device for machining linear guides, including: a fixed base, a bidirectional screw, two movable blocks, a clamping assembly, and a limiting assembly. The fixed base is mounted on a machining table. The bidirectional screw drives the two movable blocks to move in opposite directions. The clamping assembly includes two rollers, each with a rotating shaft fixedly connected to both sides. The limiting assembly includes a limiting cylinder and a limiting block. The inner side of the limiting cylinder is provided with teeth that are adapted to the limiting block. The rotating shaft is fixedly connected to the limiting cylinder. The limiting cylinder is sleeved around the limiting block and clamped by the teeth.

[0011] The technical solutions described in this application embodiment have at least the following technical effects:

[0012] Two movable blocks bring the clamping components closer together to clamp the guide rail. When the limit block is stuck inside the limit cylinder, the teeth limit the roller to prevent it from rotating, thus clamping the guide rail. When the machining position of the guide rail needs to be adjusted, the limit block is moved upward to disengage it from the limit cylinder. At this time, the roller can drive the limit cylinder to rotate, allowing the guide rail to move linearly while being clamped. There is no need to repeatedly tighten and loosen the clamp; simply releasing the limit block is enough to move the guide rail, saving clamping time and improving machining efficiency.

[0013] In some embodiments, two sliding grooves are formed on the inner side of the fixed base, the movable block is slidably connected to the sliding grooves, and the bidirectional screw is threadedly connected to the two movable blocks.

[0014] In some embodiments, a fixing plate is fixedly connected to the top of each of the two movable blocks, and equidistant support plates are fixedly installed on adjacent sides of each of the two fixing plates.

[0015] In some embodiments, the clamping assembly further includes a mounting block, an mounting frame is fixedly connected to the inner side of the mounting block, the bottom end of the mounting block is fixedly mounted on the top of the fixing plate, and the roller is rotatably mounted inside the mounting frame via the rotating shaft.

[0016] In some embodiments, the limiting component further includes a sleeve, which is fixedly installed on the top of the mounting block, and a magnet is fixedly installed on the top of the sleeve, while a magnet is fixedly installed on the inner side of the limiting sleeve.

[0017] In some embodiments, the limiting assembly further includes a limiting plate, a connecting rod fixedly connected to the bottom end of the limiting plate, the bottom end of the connecting rod being connected to the limiting block, an installation groove being provided on the inner side of the mounting block, one end of the rotating shaft extending through the mounting frame into the installation groove, the limiting cylinder being located in the installation groove, the installation groove being connected to the inside of the sleeve, a limiting shaft being fixedly installed between magnet one and magnet two, and the limiting plate, connecting rod, and limiting block being sleeved on the outer end of the limiting shaft.

[0018] In some embodiments, two sliders are fixedly installed on the inner sidewall of the sleeve, and two limiting grooves are opened at the outer end of the limiting plate. The limiting plate is slidably connected to the sliders through the limiting grooves, and a pull rod is fixedly connected to the outer end of the limiting plate. The pull rod extends through the sleeve to the outside. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the movable block structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the clamping assembly of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Fixed base;

[0026] 2. Double-ended screw;

[0027] 3. Slide groove;

[0028] 4. Active blocks;

[0029] 5. Fixing plate;

[0030] 6. Clamping assembly; 61. Mounting block; 62. Roller; 63. Mounting bracket; 64. Rotary shaft;

[0031] 7. Limiting assembly; 71. Sleeve; 72. Magnet one; 73. Magnet two; 74. Limiting shaft; 75. Limiting disc; 76. Limiting cylinder; 77. Limiting block; 78. Connecting rod; 79. Slider; 710. Limiting groove;

[0032] 8. Pallet;

[0033] 9. Pull rod. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1 - Figure 5 A clamping device for machining linear guide rails includes: a fixed base 1, a bidirectional screw 2, two movable blocks 4, a clamping assembly 6, and a limiting assembly 7. The fixed base 1 is mounted on a machining table. The bidirectional screw 2 drives the two movable blocks 4 to move in opposite directions. The clamping assembly 6 includes two rollers 62, and a rotating shaft 64 is fixedly connected to both sides of the rollers 62. The limiting assembly 7 includes a limiting cylinder 76 and a limiting block 77. The inner side of the limiting cylinder 76 is provided with teeth that are adapted to the limiting block 77. The rotating shaft 64 is fixedly connected to the limiting cylinder 76. The limiting cylinder 76 is sleeved on the outside of the limiting block 77 and is clamped by the teeth.

[0036] Two sliding grooves 3 are provided on the inner side of the fixed base 1, the movable block 4 is slidably connected to the sliding groove 3, and the bidirectional screw 2 is threadedly connected to the two movable blocks 4.

[0037] Both movable blocks 4 are fixedly connected to the top of a fixed plate 5, and each of the two fixed plates 5 is fixedly installed with an equally spaced support plate 8 on an adjacent side.

[0038] The device in this solution is mainly used to clamp and fix the guide rail during processing, facilitating the processing. The fixed base 1 is installed on the processing table and can be fixed with bolts. Slide grooves 3 are opened on both sides inside the fixed base 1. The movable blocks 4 are slidably connected to the slide grooves 3 inside the fixed base 1. The two movable blocks 4 are located on the two sides inside the fixed base 1. One end of the bidirectional screw 2 penetrates into the interior of the fixed base 1 and is rotatably connected to the inner wall of the fixed base 1, while the other end is on the outside. The bidirectional screw 2 is provided with a pair of threads in opposite directions on the outside. The two movable blocks 4 are threadedly connected to the two threads on the bidirectional screw 2. Therefore, by rotating the bidirectional screw 2, the two movable blocks 4 can move in opposite directions. The bidirectional screw 2 can be driven by electric motor or manually by connecting a handwheel.

[0039] A fixing plate 5 is fixed at the top of the movable block 4, and a clamping component 6 is set at the top of the fixing plate 5. The clamping component 6 mainly moves with the fixing plate 5 to clamp the guide rail. A limiting component 7 is set at the top of the clamping component 6. The limiting component 7 mainly assists the clamping component 6. The two movable blocks 4 drive the clamping component 6 to move closer to each other to clamp the guide rail. When the limiting block 77 is stuck inside the limiting cylinder 76, the limiting teeth can prevent the roller 62 from rotating and clamp the guide rail. When it is necessary to adjust the processing position of the guide rail, the limiting block 77 is moved upward to disengage it from the limiting cylinder 76. At this time, the roller 62 can drive the limiting cylinder 76 to rotate, so that the guide rail can move linearly when clamped. There is no need to repeatedly tighten and loosen the clamp. The guide rail can be moved simply by releasing the limiting, saving clamping time and improving processing efficiency.

[0040] Multiple equally spaced support plates 8 are fixed to the outer end of the fixed plate 5. Both fixed plates 5 are equipped with support plates 8, which are mainly used to support the bottom of the guide rail so that it can be stably placed between the two clamping components 6 and will not fall off immediately even if the clamping is released.

[0041] Please see Figure 2 and Figure 3 The clamping assembly 6 also includes a mounting block 61, with a mounting bracket 63 fixedly connected to the inner side of the mounting block 61. The bottom end of the mounting block 61 is fixedly mounted on the top of the fixing plate 5, and the roller 62 is rotatably mounted inside the mounting bracket 63 via a rotating shaft 64.

[0042] The clamping component 6 in this solution is mainly used to clamp the guide rail. The bottom of the mounting block 61 is fixed to the fixing plate 5, and the mounting bracket 63 is fixed to the inside of the mounting block 61. The mounting bracket 63 is mainly used to install the rollers 62. Both ends of the rollers 62 are fixed with rotating shafts 64. Both rollers 62 are rotatably mounted on the inside of the mounting bracket 63 through the rotating shafts 64. When the two movable blocks 4 approach each other, the fixing plate 5 can drive the two sets of rollers 62 to approach each other. The approaching rollers 62 will clamp the guide rail. Since the rollers 62 are restricted from rotating by the limiting component 7, stable clamping can be achieved.

[0043] The main body of roller 62 is made of metal to increase its strength, while the outer end of roller 62 is covered with a rubber sleeve to increase the friction when in contact. At the same time, the elastic contact of the rubber can prevent scratches caused by direct clamping of metal clamps.

[0044] Please see Figure 2 - Figure 5 The limiting component 7 also includes a sleeve 71, which is fixedly installed on the top of the mounting block 61. A magnet 72 is fixedly installed on the top of the sleeve 71, and a magnet 73 is fixedly installed on the inner side of the limiting cylinder 76.

[0045] The limiting assembly 7 also includes a limiting plate 75, with a connecting rod 78 fixedly connected to the bottom of the limiting plate 75. The bottom of the connecting rod 78 is connected to the limiting block 77. An installation groove is provided on the inner side of the mounting block 61. One end of the rotating shaft 64 extends through the mounting frame 63 into the installation groove. The limiting cylinder 76 is located in the installation groove. The installation groove is connected to the inside of the sleeve 71. A limiting shaft 74 is fixedly installed between magnet one 72 and magnet two 73. The limiting plate 75, the connecting rod 78, and the limiting block 77 are all sleeved on the outer end of the limiting shaft 74.

[0046] Two sliders 79 are fixedly installed on the inner side wall of the sleeve 71. Two limiting grooves 710 are opened at the outer end of the limiting plate 75. The limiting plate 75 is slidably connected to the sliders 79 through the limiting grooves 710. A pull rod 9 is fixedly connected to the outer end of the limiting plate 75. The pull rod 9 extends through the sleeve 71 to the outside.

[0047] The limiting component 7 in this solution is mainly used to limit the roller 62. Each limiting component 7 works in conjunction with one roller 62. Two limiting components 7 are connected by a tie rod 9 to form a set. Two mounting slots are opened on the top of the mounting block 61. The sleeve 71 is installed above the mounting slot and is connected to its interior. One of the rotating shafts 64 on the roller 62 extends into the mounting slot of the mounting block 61 and is fixedly connected to the limiting cylinder 76 in the mounting slot. A magnet 72 is installed on the top of the sleeve 71, and a magnet 73 is fixed at the bottom of the inside of the limiting cylinder 76. At the same time, a limiting shaft 74 is fixed between the magnet 72 and the magnet 73. The limiting shaft 74 mainly serves as a guide and fixation.

[0048] Two sliders 79 are fixed on the inner side wall of the sleeve 71, and two matching limiting grooves 710 are opened on the outer end of the limiting plate 75. The limiting plate 75 is slidably connected to the sliders 79 through the limiting grooves 710, so that the limiting plate 75 cannot rotate. A connecting rod 78 is fixed at the bottom of the limiting plate 75, and a limiting block 77 is fixed at the bottom of the connecting rod 78. External teeth are fixed on the outer surface of the limiting block 77, and an inner ring of internal teeth is fixed on the inner side of the limiting cylinder 76, which are mutually compatible. The limiting plate 75, the connecting rod 78 and the limiting block 77 are all sleeved on the outer end of the limiting shaft 74 and can slide up and down along the limiting shaft 74.

[0049] When the limiting block 77 is inserted into the inside of the limiting cylinder 76, the magnet 73 inside the limiting cylinder 76 will attract the limiting block 77 to the inside of the limiting cylinder 76 through magnetic force. At this time, the teeth on the limiting block 77 and the limiting cylinder 76 will also interlock. Since the limiting disk 75 is restricted by the slider 79, the limiting cylinder 76 will be stuck and unable to rotate. At this time, the roller 62 will also be unable to rotate, so that it can clamp the guide rail.

[0050] When the guide rail needs to be moved, there is no need to loosen the clamp. Since the outer end of the sleeve 71 has a vertical groove, the two ends of the pull rod 9 pass through the vertical groove and are inserted into the two sleeves 71 and fixedly connected to the limiting plate 75. Therefore, by pulling the pull rod 9 upward, the limiting plate 75 can move upward with the limiting block 77, so that the limiting block 77 is separated from the limiting cylinder 76. At this time, the upward-moving limiting plate 75 will contact the magnet 72 on the top of the sleeve 71. Through the magnetic attraction of the magnet 72, the limiting plate 75 can be attracted to the top of the sleeve 71, so that the limiting block 77 is separated from the limiting cylinder 76. At this time, without the restriction of the limiting block 77, the roller 62 will rotate, allowing the user to directly push the guide rail back and forth to adjust the position without repeatedly tightening and loosening the clamp, thus improving the efficiency of processing and use.

[0051] Working principle: When using this device, first place the guide rail between the two clamping components 6. By rotating the bidirectional screw 2, the two movable blocks 4 can move in opposite directions, causing the clamping components 6 to clamp the guide rail. At this time, the limiting block 77 is inserted into the inner side of the limiting cylinder 76, causing the teeth to interlock. Since the limiting disc 75 is restricted by the slider 79, the limiting cylinder 76 will be stuck and unable to rotate, and the roller 62 will also be unable to rotate. When it is necessary to move the guide rail, pull the lever 9 upward, which will cause the limiting disc 75 to move upward with the limiting block 77 and disengage from the limiting cylinder 76. The magnetic attraction of the magnet 72 will attract the limiting disc 75 to the top of the sleeve 71. At this time, without the restriction of the limiting block 77, the roller 62 will rotate, allowing the user to directly push the guide rail back and forth to adjust its position.

Claims

1. A clamping device for machining linear guides, characterized in that, include: Fixed base (1), installed on the processing table; Bidirectional screw (2); Two movable blocks (4), the bidirectional screw (2) drives the two movable blocks (4) to move in opposite directions; The clamping assembly (6) includes two rollers (62), and a rotating shaft (64) is fixedly connected to both sides of each roller (62). The limiting component (7) includes a limiting cylinder (76) and a limiting block (77). The inner side of the limiting cylinder (76) is provided with teeth that are adapted to the limiting block (77). The rotating shaft (64) is fixedly connected to the limiting cylinder (76). The limiting cylinder (76) is sleeved around the limiting block (77) and passes through the tooth phase clamp.

2. The clamping device for machining linear guides according to claim 1, characterized in that: The fixed base (1) has two sliding grooves (3) on its inner side. The movable block (4) is slidably connected to the sliding groove (3). The bidirectional screw (2) is threadedly connected to the two movable blocks (4).

3. The clamping device for machining linear guides according to claim 1, characterized in that: The top of each of the two movable blocks (4) is fixedly connected to a fixing plate (5), and each of the two fixing plates (5) is fixedly installed with equidistant support plates (8) on an adjacent side.

4. The clamping device for machining linear guides according to claim 3, characterized in that: The clamping assembly (6) also includes a mounting block (61), on which a mounting frame (63) is fixedly connected. The bottom end of the mounting block (61) is fixedly mounted on the top of the fixing plate (5), and the roller (62) is rotatably mounted on the inside of the mounting frame (63) via the rotating shaft (64).

5. The clamping device for machining linear guides according to claim 4, characterized in that: The limiting component (7) also includes a sleeve (71), which is fixedly installed on the top of the mounting block (61). A magnet (72) is fixedly installed on the top of the sleeve (71), and a magnet (73) is fixedly installed on the inner side of the limiting cylinder (76).

6. The clamping device for machining linear guides according to claim 5, characterized in that: The limiting component (7) also includes a limiting plate (75), a connecting rod (78) is fixedly connected to the bottom end of the limiting plate (75), the bottom end of the connecting rod (78) is connected to the limiting block (77), the mounting block (61) has an installation groove on its inner side, one end of the rotating shaft (64) extends through the mounting frame (63) into the installation groove, the limiting cylinder (76) is located in the installation groove, the installation groove is connected to the inside of the sleeve (71), the limiting shaft (74) is fixedly installed between the first magnet (72) and the second magnet (73), and the limiting plate (75), the connecting rod (78) and the limiting block (77) are all sleeved on the outer end of the limiting shaft (74).

7. A clamping device for machining linear guides according to claim 6, characterized in that: Two sliders (79) are fixedly installed on the inner side wall of the sleeve (71). Two limiting grooves (710) are opened at the outer end of the limiting plate (75). The limiting plate (75) is slidably connected to the sliders (79) through the limiting grooves (710). A pull rod (9) is fixedly connected to the outer end of the limiting plate (75). The pull rod (9) extends through the sleeve (71) to the outside.

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