A clamping device for machining linear bearing openings

Abstract

The utility model relates to linear bearing processing technical field especially is a kind of clamping device for processing linear bearing opening, including base, the top center of base is fixed with placing block, the linear bearing to be processed is placed in the placing block, the front and rear ends of base are respectively fixed with first clamping mechanism, the first clamping mechanism includes the mount and first electric cylinder fixed on base, fixed with connecting plate on the telescopic end of first electric cylinder. Through first clamping mechanism, second clamping mechanism and clamping groove, first clamping mechanism is clamped to the front and rear sidewall of linear bearing, while second clamping mechanism is clamped to the left and right outer wall of linear bearing, the shape of clamping groove is inlaid with the outer wall, inner wall profile of linear bearing, so that clamping force can be evenly distributed on bearing surface, not only substantially increase the effective contact area of clamping, further strengthen the stability of clamping, avoid that bearing occurs deviation, rotates or shakes.

Description

Technical Field

[0001] This utility model relates to the field of linear bearing processing technology, specifically a clamping device for processing the opening of a linear bearing. Background Technology

[0002] Linear bearings are one of the core components in the field of mechanical transmission, widely used in automated production lines, precision instruments, machine tools, and other applications. Their performance directly affects the motion accuracy and stability of the equipment. In the manufacturing process of linear bearings, the opening machining process is a crucial step that determines the bearing's assembly compatibility and performance. Specific-sized openings need to be machined into the bearing body using cutting and other processes to meet the assembly requirements of the bearing with components such as bushings and guide rails. To ensure the accuracy of the opening machining, the linear bearing must be stably and reliably clamped during the machining process to prevent it from shifting or shaking due to cutting forces, vibrations, or other factors. Therefore, a clamping device is required to fix it in place.

[0003] In existing devices, the clamping of linear bearings is not stable enough, which can easily lead to the loosening of the linear bearings. Specifically, the linear bearings are clamped in a single dimension, which cannot achieve synchronous fixation in multiple directions and dimensions. When the machining tool applies cutting force to the bearing, the unconstrained bearing is prone to displacement, rotation, or shaking, resulting in deviations in the size and position of the opening. This affects the assembly accuracy and subsequent performance of the linear bearing. Therefore, a clamping device for machining the opening of linear bearings is needed to improve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device for machining openings in linear bearings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A clamping device for machining openings in linear bearings includes a base, a placement block fixed at the top center of the base, and a linear bearing to be machined placed on the placement block.

[0006] The base is fixed with a first clamping mechanism at both the front and rear ends. The first clamping mechanism includes a mounting bracket and a first electric cylinder fixed on the base. A connecting plate is fixed on the telescopic end of the first electric cylinder. A connecting rod is fixed on the connecting plate. After the connecting rod passes through the mounting bracket, an arc-shaped clamping plate is fixed thereon. The arc-shaped surface of the arc-shaped clamping plate is in contact with the outer wall of the linear bearing.

[0007] The base is fixed with a second clamping mechanism on its left and right sides respectively. The second clamping mechanism includes a second electric cylinder fixed on the base. The telescopic end of the second electric cylinder is fixed with a clamping block. The clamping block has multiple sets of clamping slots. Each set of clamping slots has two slots, which are located on both sides of the clamping block. The clamping slots are engaged with linear bearings.

[0008] As a preferred embodiment of this utility model, the top view projection of the base is in the shape of a cross, and a positioning plate is fixed to the outer wall of the base, with a positioning groove provided on the positioning plate.

[0009] Through the above technical solution, the positioning plate and positioning groove on the outer wall of the base can be used with external processing equipment, such as a machine tool worktable, to realize the installation of the device on the processing equipment.

[0010] As a preferred embodiment of this utility model, the top of the placement block is provided with an arc-shaped groove, a rubber pad is provided on the arc-shaped groove, and the linear bearing is placed on the rubber pad.

[0011] Through the above technical solution, the arc-shaped groove on the top of the placement block is adapted to the bottom contour of the linear bearing. The rubber pad in the groove increases the friction with the bearing on the one hand to prevent the bearing from sliding when placed, and on the other hand, it utilizes the elastic buffering properties of rubber to avoid hard contact between the bearing and the placement block, which would cause surface scratches.

[0012] As a preferred embodiment of this utility model, the placement block has through slots on both sides, with three through slots on each side.

[0013] The through groove is designed to cooperate with the arc-shaped clamping plate, serving as a moving through groove for the arc-shaped clamping plate.

[0014] As a preferred embodiment of this utility model, the mounting bracket is shaped like an inverted "U" and has a through hole that fits with the connecting rod with a clearance.

[0015] Through the above technical solution, the through hole on the mounting bracket and the connecting rod are fitted with a clearance, ensuring that the connecting rod slides in a straight line under the drive of the first electric cylinder, thereby improving the motion accuracy and clamping stability of the arc-shaped clamping plate.

[0016] As a preferred embodiment of this utility model, a silicone pad is provided on the arc-shaped surface of the arc-shaped clamp, and the silicone pad has anti-slip texture.

[0017] Through the above technical solution, the flexible material of silicone can better fit the outer wall of the linear bearing, increasing the contact friction while dispersing the clamping force and avoiding excessive local pressure that could damage the bearing surface.

[0018] As a preferred embodiment of this utility model, the inner wall of the clamping groove is provided with a buffer pad, and the buffer pad has anti-slip texture.

[0019] Through the above technical solution, the elasticity of the buffer pad can adapt to the slight dimensional deviations of linear bearings of different specifications, improving the clamping adaptability. The anti-slip texture further increases the friction with the bearing, preventing the bearing from sliding after clamping. In addition, multiple sets of clamping grooves of different specifications are opened on the clamping block, so that the corresponding groove can be selected for clamping according to the actual outer diameter and inner diameter of the linear bearing to be processed, which greatly improves the adaptability of the device to linear bearings of different specifications.

[0020] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the structural design of a first clamping mechanism, a second clamping mechanism, and a clamping groove, clamps the front and rear side walls of the linear bearing with the first clamping mechanism, while clamping the left and right outer walls of the linear bearing with the second clamping mechanism. The shape of the clamping groove fits the contours of the outer and inner walls of the linear bearing, so that the clamping force can be evenly distributed on the bearing surface. This not only greatly increases the effective contact area of ​​clamping, but also further enhances the stability of clamping, and achieves multi-dimensional and all-round synchronous fixation. It can effectively offset the influence of cutting force, vibration and other factors on the linear bearing during processing, avoid the bearing from shifting, rotating or shaking, ensure the dimensional accuracy and positional accuracy of the opening processing, improve the processing quality of the linear bearing opening, and ensure the subsequent assembly and use performance.

[0021] 2. Through the structural design of clamping blocks and clamping slots, this utility model has multiple sets of clamping slots of different specifications on the two second electric cylinders, which can be adapted to the processing of linear bearings with different inner and outer diameters. It eliminates the need to frequently change clamping devices or perform complex structural adjustments for bearings of different specifications, greatly expanding the applicability of the device, reducing equipment procurement and maintenance costs, and improving the operating efficiency in multi-variety, small-batch production scenarios. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the placement block structure of this utility model; Figure 3 This is a schematic diagram of the first clamping mechanism of this utility model; Figure 4 This is a schematic diagram of the second clamping mechanism of this utility model; Figure 5 This is a schematic diagram of the clamping block structure of this utility model.

[0023] In the figure: 1. Base; 2. Placement block; 20. Arc groove; 21. Through groove; 3. First clamping mechanism; 30. Mounting bracket; 300. Through hole; 31. First electric cylinder; 32. Connecting plate; 33. Connecting rod; 34. Arc clamping plate; 4. Second clamping mechanism; 40. Second electric cylinder; 41. Clamping block; 410. Clamping groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to 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.

[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0026] For examples, please refer to Figure 1-5 This utility model provides a technical solution: A clamping device for machining the opening of a linear bearing includes a base 1, a placement block 2 fixed at the top center of the base 1, and a linear bearing to be machined placed on the placement block 2.

[0027] The base 1 is fixed with a first clamping mechanism 3 at its front and rear ends respectively. The first clamping mechanism 3 includes a mounting frame 30 fixed on the base 1 and a first electric cylinder 31. A connecting plate 32 is fixed on the telescopic end of the first electric cylinder 31. A connecting rod 33 is fixed on the connecting plate 32. There are three connecting rods 33. After the connecting rods 33 pass through the mounting frame 30, an arc-shaped clamping plate 34 is fixed thereon. The arc-shaped surface of the arc-shaped clamping plate 34 is attached to the outer wall of the linear bearing.

[0028] The base 1 is fixed with a second clamping mechanism 4 on its left and right sides respectively. The second clamping mechanism 4 includes a second electric cylinder 40 fixed on the base 1. The extension end of the second electric cylinder 40 is fixed with a clamping block 41. The clamping block 41 has multiple sets of clamping grooves 410. Each set of clamping grooves 410 has two grooves, which are located on both sides of the clamping block 41 respectively. The clamping grooves 410 are engaged with the linear bearing.

[0029] In this embodiment, the top view of the base 1 is in the shape of a cross, and a positioning plate is fixed on the outer wall of the base 1, with a positioning groove provided on the positioning plate.

[0030] The positioning plate and positioning groove on the outer wall of the base 1 can be used with external processing equipment, such as a machine tool table, to enable the device to be installed on the processing equipment.

[0031] In this embodiment, an arc-shaped groove 20 is provided on the top of the placement block 2, and a rubber pad is provided on the arc-shaped groove 20, on which the linear bearing is placed.

[0032] Among them, the arc-shaped groove 2 on the top of the placement block 2 is adapted to the bottom contour of the linear bearing. The rubber pad in the groove increases the friction with the bearing on the one hand to prevent the bearing from sliding when placed, and on the other hand, it uses the elastic buffering properties of rubber to avoid the bearing from hard contact with the placement block, which would cause surface scratches.

[0033] In this embodiment, through slots 21 are provided on both sides of the placement block 2, and there are three through slots 21 on each side.

[0034] The through groove 21 is designed to cooperate with the arc-shaped clamp 34 and serve as a moving through groove for the arc-shaped clamp 34.

[0035] In this embodiment, the mounting bracket 30 is shaped like an inverted "U" and has a through hole 300 that fits with the connecting rod 33 with a clearance.

[0036] The through hole 300 on the mounting bracket and the connecting rod 33 are fitted with a clearance to ensure that the connecting rod 33 slides in a straight line under the drive of the first electric cylinder 31, thereby improving the motion accuracy and clamping stability of the arc-shaped clamping plate 34.

[0037] In this embodiment, a silicone pad is provided on the curved surface of the curved clamp 34, and the silicone pad has anti-slip texture.

[0038] The flexible material of silicone can better conform to the outer wall of the linear bearing, increasing contact friction while dispersing clamping force and avoiding excessive local pressure that could damage the bearing surface.

[0039] In this embodiment, the inner wall of the clamping groove 410 is provided with a buffer pad, and the buffer pad has anti-slip texture.

[0040] The buffer pad's elasticity can adapt to the slight dimensional deviations of linear bearings of different specifications, improving clamping adaptability. The anti-slip texture further increases the friction with the bearing, preventing the bearing from sliding after clamping. In addition, multiple sets of clamping grooves 410 of different specifications are opened on the clamping block 41, which can select the corresponding groove for clamping according to the actual outer diameter and inner diameter of the linear bearing to be processed, greatly improving the device's adaptability to linear bearings of different specifications.

[0041] In this embodiment, the two first electric cylinders 31 work synchronously through a synchronization controller, and the two second electric cylinders 40 also work synchronously through a synchronization controller to ensure the synchronization performance during the clamping process. The synchronization controller is a technology well known to those skilled in the art, and will not be described in detail here.

[0042] The working process of this utility model is as follows: When using the clamping device designed in this solution for processing linear bearing openings, firstly, connect the external power supply and control switch to the electrical equipment in this device. Place the linear bearing to be processed in the arc-shaped groove 20 on the top of the placement block 2. The rubber pad in the arc-shaped groove 20 provides initial anti-slip positioning for the bearing. Then, activate the first clamping mechanism 3 at both ends of the base 1: the telescopic end of the first electric cylinder 31 pushes the connecting plate 32, causing the connecting rod 33 to slide linearly along the through hole 300 of the mounting bracket 30, so that the arc-shaped clamping plate 34 moves towards the front and rear side walls of the linear bearing until the silicone pad on the arc-shaped clamping plate 34 is in contact with the bearing. The front and rear outer walls of the bearing are tightly fitted together, completing the clamping and fixing of the linear bearing in the front-to-back direction. Then, the second clamping mechanism 4 on the left and right sides of the base 1 is activated: the telescopic end of the second electric cylinder 40 pushes the clamping block 41 to move towards the left and right outer walls of the linear bearing, so that the buffer pad on the inner wall of the clamping groove 410 fits against the left and right outer and inner walls of the bearing, completing the clamping and fixing of the linear bearing in the left and right direction. At this time, the linear bearing is stably clamped in both the front-to-back and left-to-right directions, and it can be opened by external processing equipment, such as a milling machine or lathe. After the processing is completed, the telescopic ends of the first electric cylinder 31 and the second electric cylinder 40 are reset, and the processed linear bearing can be taken out.

[0043] The first electric cylinder 31 and the second electric cylinder 40 used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the first electric cylinder 31 and the second electric cylinder 40 will not be described in detail here.

[0044] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0045] 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 clamping device for machining openings in linear bearings, comprising a base (1), characterized in that: A placement block (2) is fixed at the top center of the base (1), and the linear bearing to be processed is placed on the placement block (2); The base (1) has a first clamping mechanism (3) fixed at its front and rear ends respectively. The first clamping mechanism (3) includes a mounting bracket (30) fixed on the base (1) and a first electric cylinder (31). A connecting plate (32) is fixed on the telescopic end of the first electric cylinder (31). A connecting rod (33) is fixed on the connecting plate (32). The connecting rod (33) passes through the mounting bracket (30) and is fixed with an arc-shaped clamping plate (34). The arc-shaped surface of the arc-shaped clamping plate (34) is attached to the outer wall of the linear bearing. The base (1) is fixed with a second clamping mechanism (4) on its left and right sides respectively. The second clamping mechanism (4) includes a second electric cylinder (40) fixed on the base (1). The telescopic end of the second electric cylinder (40) is fixed with a clamping block (41). The clamping block (41) has multiple sets of clamping grooves (410). Each set of clamping grooves (410) has two grooves, which are located on both sides of the clamping block (41). The clamping grooves (410) are engaged with the linear bearing.

2. The clamping device for machining linear bearing openings according to claim 1, characterized in that: The top view projection of the base (1) is in the shape of a cross. The outer wall of the base (1) is fixed with a positioning plate, and the positioning plate is provided with a positioning groove.

3. A clamping device for machining linear bearing openings according to claim 1, characterized in that: The top of the placement block (2) is provided with an arc-shaped groove (20), and a rubber pad is provided on the arc-shaped groove (20). The linear bearing is placed on the rubber pad.

4. A clamping device for machining linear bearing openings according to claim 3, characterized in that: The placement block (2) has through slots (21) on both sides, with three through slots (21) on each side.

5. A clamping device for machining linear bearing openings according to claim 1, characterized in that: The mounting bracket (30) is in the shape of an inverted "U". The mounting bracket (30) has a through hole (300) that fits with the connecting rod (33) with a clearance.

6. A clamping device for machining linear bearing openings according to claim 1, characterized in that: The curved surface of the arc-shaped clamp (34) is provided with a silicone pad, which has anti-slip texture.

7. A clamping device for machining linear bearing openings according to claim 1, characterized in that: The inner wall of the clamping groove (410) is provided with a buffer pad, which has anti-slip texture.

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