Electric sliding table with double-guide structure

Abstract

The utility model relates to an electric sliding table with a double-guide structure. Comprising a guide rail, a synchronous belt arranged around the guide rail, a sliding table assembly arranged on the synchronous belt, synchronous wheel structures installed at the two ends of the guide rail and a driving device used for driving the synchronous belt to operate. The sliding table assembly slides on the two sides of the guide rail. The synchronous belt is wound on the two groups of synchronous wheel structures; the driving device is in transmission connection with one group of synchronous wheel structures; according to the technical scheme, the problems that in the prior art, limitation of a sliding table is particularly prominent, a single-side guide structure is prone to clamping stagnation when bearing eccentric loads, the equipment shutdown frequency is increased due to the loosening risk of a synchronous belt, a tensioning mechanism lacks the dynamic compensation capacity, belt length changes caused by temperature rise or vibration cannot be automatically adjusted, frequent manual intervention is needed, and the working efficiency is high are solved. And meanwhile, due to the lack of modular design, the time consumption for replacing or maintaining the synchronous belt is obvious, and the continuity of a production line is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric sliding table field especially relates to a double guide structure electric sliding table. BACKGROUND

[0002] As the core transmission component of automation equipment, the carrying capacity, running accuracy and structural reliability of the electric sliding table directly affect the equipment performance. The traditional electric sliding table adopts single guide rail and rigid synchronous belt connection design, which has the following technical defects: first, the synchronous belt relies on bolt hard fixation, and the tension force is easy to decrease due to material creep or vibration after long-term operation, which causes transmission slip or positioning deviation; second, the contact area of the single guide structure sliding block and the track is limited, and the lateral load is easy to cause track wear during high-speed movement, which limits the load capacity; third, the synchronous belt tension adjustment needs to disassemble the shell and manually adjust the idler position, which is complicated to maintain and difficult to ensure the balance of bilateral tension. In the existing improvement scheme, although the double guide structure improves rigidity, it leads to the increase of volume, which cannot adapt to the installation requirements of compact equipment.

[0003] For high load and high precision scenes (such as numerical control machine tool tool magazine and precision detection equipment), the limitations of the traditional sliding table are particularly prominent: the single-sided guide structure is easy to produce jam when bearing eccentric load, and the risk of synchronous belt loosening increases the frequency of equipment downtime; the tensioning mechanism lacks dynamic compensation ability, and the change of belt length caused by temperature rise or vibration cannot be automatically adjusted, which needs frequent manual intervention. In addition, the lack of modular design makes the synchronous belt replacement or maintenance time-consuming, which affects the continuity of the production line. It is urgent to develop an electric sliding table integrating high-rigidity guide, intelligent tension adjustment and compact layout to break through the technical bottleneck of low carrying capacity and high maintenance cost of traditional structure. UTILITY MODEL CONTENTS

[0004] The embodiment of the application provides a double guide structure electric sliding table, which solves the technical problems that the limitations of the existing technical scheme are particularly prominent, the single-sided guide structure is easy to produce jam when bearing eccentric load, the risk of synchronous belt loosening increases the frequency of equipment downtime, the tensioning mechanism lacks dynamic compensation ability, the change of belt length caused by temperature rise or vibration cannot be automatically adjusted, frequent manual intervention is needed, and the lack of modular design makes the synchronous belt replacement or maintenance time-consuming, which affects the continuity of the production line.

[0005] The technical scheme adopted by the embodiment of the application is as follows:

[0006] The utility model provides a double guide structure electric sliding table, including guide rail, the synchronous belt around guide rail is established, the sliding table component is established on synchronous belt, the synchronous wheel structure is installed in the both ends of guide rail and is used for driving synchronous belt operation driving device, the sliding table component slides in the both sides of guide rail, synchronous belt is established around two groups of synchronous wheel structure, driving device transmission connection is established in one group of synchronous wheel structure, the sliding table component includes piston, toothed plate, guide block, belt adjusting baffle, buffer head, adjusting screw, belt pressing plate, apron and wear ring, the piston slides in the guide rail, the guide block is fixedly installed in the both ends of piston, two groups of guide block slide in the both ends of guide rail respectively, two groups of toothed plate are held in the both ends of synchronous belt opening through belt pressing plate respectively, two groups of belt pressing plate are established in the bottom end of apron, the apron is installed in the top end of piston, the belt adjusting baffle is installed in the both ends of piston, the buffer head and adjusting screw are installed on two groups of belt adjusting baffle, and the adjusting screw is against belt adjusting baffle.

[0007] Further technical solutions are as follows: the synchronous wheel structure includes adapter plate, synchronous wheel, bearing, end cover, end cover cover plate and pulley shaft, the synchronous wheel is connected to the pulley shaft through the bearing, the pulley shaft is arranged in the end cover, the end cover cover plate and the adapter plate are respectively installed at the both ends of the end cover, the adapter plate is installed at one end of the guide rail, the synchronous belt is arranged around two groups of synchronous wheels, and the driving device is transmissionally connected to one group of the synchronous wheels.

[0008] Further technical solutions are as follows: the driving device is a servo motor.

[0009] One or more technical solutions provided in the embodiments have at least the following technical effects or advantages:

[0010] 1. Due to the arrangement of the guide rail, the synchronous belt, the sliding table component, the synchronous wheel structure and the driving device, the contact area is increased by more than twice through the bilateral sliding cooperation of the double guide blocks and the guide rail, and the anti-unbalanced load capacity is significantly enhanced. The toothed plate-belt pressing plate locking structure of the synchronous belt is combined with the dynamic tensioning design of the adjusting screw to realize precise control of the tensioning force and avoid the stress concentration and loosening risk caused by the traditional bolt fixation. The integrated guide and transmission functions in the compact layout reduce the axial space occupation and adapt to narrow equipment installation environments. The modularized sliding table component supports quick disassembly and assembly, the wear ring and the buffer head prolong the service life of the key components and reduce the maintenance frequency. The overall structure is designed through the cooperation of rigidity reinforcement and intelligent adjustment to solve the technical problems of positioning accuracy attenuation and low transmission reliability under high load working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1A double guide structure electric sliding table overall sectional view in the embodiment of the utility model.

[0012] Figure 2 A double guide structure electric sliding table overall explosion map in the embodiment of the utility model.

[0013] In the drawing: 1, guide rail; 2, synchronous belt; 3, sliding table assembly; 4, synchronous wheel structure; 5, driving device; 31, piston; 32, tooth plate; 33, guide block; 34, belt adjusting baffle; 35, buffer head; 36, adjusting screw; 37, belt pressing plate; 38, cover plate; 39, wear-resistant ring; 41, adapter plate; 42, synchronous wheel; 43, bearing; 44, end cover; 45, end cover cover plate; 46, pulley shaft. DETAILED DESCRIPTION

[0014] The embodiment of the application provides a double guide structure electric sliding table, which solves the limitation of the sliding table in the prior art, the unilateral guide structure is prone to jamming when bearing eccentric load, the risk of synchronous belt loosening increases the equipment downtime frequency, the tensioning mechanism lacks dynamic compensation capability, the belt length change caused by temperature rise or vibration cannot be automatically adjusted, frequent manual intervention is required, and the lack of modular design makes the synchronous belt replacement or maintenance time-consuming, and the technical problem of affecting production line continuity is solved.

[0015] The technical scheme in the embodiment of the application is as follows to solve the above problems:

[0016] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0017] A double guide structure electric sliding table, such as Figure 1 and Figure 2As shown, it comprises a guide rail 1, a synchronous belt 2 arranged around the guide rail 1, a sliding table assembly 3 arranged on the synchronous belt 2, a synchronous wheel structure 4 arranged at both ends of the guide rail 1, and a driving device 5 for driving the synchronous belt 2 to run; the sliding table assembly 3 slides on both sides of the guide rail 1; the synchronous belt 2 is arranged around the two sets of synchronous wheel structures 4; the driving device 5 is drivingly connected to one of the two sets of synchronous wheel structures 4; the sliding table assembly 3 comprises a piston 31, a toothed plate 32, a guide block 33, a belt adjusting baffle 34, a buffer head 35, an adjusting screw 36, a belt pressing plate 37, a cover plate 38, and a wear-resistant ring 39; the piston 31 slides in the guide rail 1; the guide block 33 is fixedly arranged at both left and right ends of the piston 31; the two sets of guide blocks 33 slide on both ends of the guide rail 1 respectively; the two sets of toothed plates 32 are clamped at both ends of the opening of the synchronous belt 2 through the belt pressing plate 37; the two sets of belt pressing plates 37 are arranged at the bottom end of the cover plate 38; the cover plate 38 is arranged at the top end of the piston 31; the belt adjusting baffles 34 are arranged at both front and rear ends of the piston 31; the buffer head 35 and the adjusting screw 36 are arranged on the two sets of belt adjusting baffles 34; and the adjusting screw 36 abuts against the belt adjusting baffle 34.

[0018] The synchronous wheel structure 4 comprises a adapter plate 41, a synchronous wheel 42, a bearing 43, an end cover 44, an end cover cover plate 45, and a pulley shaft 46; the synchronous wheel 42 is connected to the pulley shaft 46 through the bearing 43; the pulley shaft 46 is arranged in the end cover 44; the end cover 44 is provided with the adapter plate 41 and the end cover cover plate 45 at both ends respectively; the adapter plate 41 is arranged at one end of the guide rail 1; the synchronous belt 2 is arranged around the two sets of synchronous wheels 42; and the driving device 5 is drivingly connected to one of the two sets of synchronous wheels 42.

[0019] The driving device 5 is a servo motor.

[0020] The double-guide structure electric sliding table comprises a guide rail 1, a synchronous belt 2 arranged around the guide rail 1, and a synchronous wheel structure 4 arranged at both ends of the guide rail 1. The sliding table assembly 3 is composed of a piston 31, double guide blocks 33, toothed plates 32, and an adjusting mechanism. The piston 31 is nested in the inner cavity of the guide rail 1, and the guide blocks 33 are fixed at both left and right ends of the piston 31. The two sets of guide blocks 33 are in precise sliding fit with both sides of the guide rail 1. The toothed plates 32 are locked at the opening ends of the synchronous belt 2 through the belt pressing plates 37, and the belt pressing plates 37 are pressed and fixed on the top of the piston 31 by the cover plate 38. The belt adjusting baffles 34 are arranged at both front and rear ends of the piston 31, and the buffer head 35 and the adjusting screw 36 are arranged on the baffles 34. The screw 36 abuts against the baffle 34 to fine-tune the tension of the synchronous belt 2. The synchronous wheel structure 4 comprises a pulley shaft 46, a synchronous wheel 42 supported by a bearing 43, and an end cover 44. The driving device 5 (servo motor) drives the synchronous wheel 42 to rotate.

[0021] Operation flow:

[0022] Positioning: align the guide blocks 33 of the sliding table assembly 3 with the sliding grooves on both sides of the guide rail 1, and push them to the starting point of the stroke.

[0023] Synchronous belt tensioning: tightening the adjusting screw 36 pushes the belt adjusting baffle 34, so that the synchronous belt 2 is evenly taut between the tooth plate 32 and the belt pressing plate 37;

[0024] Load operation: start the driving device 5 to drive the synchronous wheel 42, and the synchronous belt 2 drives the sliding table assembly 3 to move along the guide rail 1, and the double guide blocks 33 disperse the lateral load;

[0025] Dynamic compensation: the buffer head 35 absorbs vibration impact during operation, and the adjusting screw 36 can be adjusted at any time;

[0026] Maintenance and replacement: the belt pressing plate 37 can be loosened by disassembling the cover plate 38, and the synchronous belt 2 or the guide block 33 can be quickly replaced.

[0027] Beneficial effects:

[0028] Due to the adoption of the guide rail 1, the synchronous belt 2, the sliding table assembly 3, the synchronous wheel structure 4 and the driving device 5, the sliding table is in double-sided sliding cooperation with the guide rail 1 through the double guide blocks 33, so that the contact area is increased by more than twice, the anti-unbalanced load capacity is significantly enhanced, and it is suitable for the above heavy load scenes. The tooth plate 32-belt pressing plate 37 locking structure of the synchronous belt 2 is combined with the dynamic tensioning design of the adjusting screw 36, so that the tensioning force is accurately controlled, and the stress concentration and loosening risk caused by the traditional bolt fixing are avoided. The compact layout integrates the guiding and transmission functions, the axial space occupation is reduced, and it is suitable for narrow equipment installation environment. The modularized sliding table assembly 3 supports quick disassembly and assembly, the wear-resistant ring 39 and the buffer head 35 prolong the service life of the key components and reduce the maintenance frequency. The overall structure is designed through the cooperation of rigidity reinforcement and intelligent adjustment, and the technical problems of positioning accuracy attenuation and low transmission reliability under high load working conditions are solved.

[0029] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these changes and modifications.

Claims

1. A dual guide structure electric slide, characterized by, The utility model relates to a synchronous belt driving type slide rail structure, including guide rail (1), the synchronous belt (2) that sets up around guide rail (1), the slide platform subassembly (3) that sets up on synchronous belt (2), install synchronous wheel structure (4) at both ends of guide rail (1) and be used for driving the drive arrangement (5) of synchronous belt (2) operation, slide platform subassembly (3) slides in both sides of guide rail (1), synchronous belt (2) is around setting in two groups synchronous wheel structure (4), drive arrangement (5) transmission connection in one group synchronous wheel structure (4), Slide platform subassembly (3) includes piston (31), toothed plate (32), guide block (33), belt adjusting baffle (34), buffer head (35), adjusting screw (36), belt pressing plate (37), cover plate (38) and wear -resisting ring (39), piston (31) slides in guide rail (1), both ends of piston (31) are fixedly installed with guide block (33), two groups of guide block (33) are slid in both ends of guide rail (1) respectively, two groups of toothed plate (32) are held in both ends of the opening of synchronous belt (2) respectively through belt pressing plate (37), two groups of belt pressing plate (37) are set up in the bottom end of cover plate (38), cover plate (38) is installed in the top end of piston (31), both ends of piston (31) are installed with belt adjusting baffle (34), two groups of belt adjusting baffle (34) are installed with buffer head (35) and adjusting screw (36) respectively, adjusting screw (36) is in abutment with belt adjusting baffle (34).

2. A dual guide structure electric slide as claimed in claim 1, characterized in that, Synchronous wheel structure (4) includes adapter plate (41), synchronous wheel (42), bearing (43), end cover (44), end cover cover plate (45) and pulley shaft (46), synchronous wheel (42) is connected on pulley shaft (46) through bearing (43), pulley shaft (46) is set in end cover (44), end cover (44) both ends are installed with adapter plate (41) and end cover cover plate (45) respectively, adapter plate (41) is installed in the end of guide rail (1), synchronous belt (2) is around setting in two groups synchronous wheel (42), drive arrangement (5) transmission connection in one group synchronous wheel (42).

3. A dual guide structure electric slide as claimed in claim 2, characterized in that, Drive arrangement (5) is servo motor.

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