High-speed synchronous belt linear sliding table

Abstract

The utility model provides a high-speed synchronous belt linear sliding table, and belongs to the technical field of machinery. The problem that an existing sliding table is large in production difficulty is solved. The high-speed synchronous belt linear sliding table comprises a cross beam, a synchronous belt arranged on the cross beam and a supporting plate fixed to the synchronous belt, long-strip-shaped roller paths are arranged on the two sides of the cross beam in the width direction, at least one rolling wheel is arranged on each roller path, each rolling wheel comprises a wheel shell and a bearing installed in the wheel shell, each bearing comprises an inner ring, and a strip-shaped groove vertically penetrates through the supporting plate. The length of the strip-shaped groove extends along the width direction of the beam; the strip-shaped grooves and the rollers are the same in number and are in one-to-one correspondence; a straight pipe body is vertically pressed between each inner ring and the supporting plate, a pressing cap is arranged below each inner ring, and a gasket is pressed between the pressing cap and the inner ring which correspond to each other in position; bolts are arranged in the strip-shaped grooves, the rod portions of the bolts sequentially penetrate through the corresponding straight pipe bodies and the corresponding inner rings and are screwed into the corresponding pressing caps, and the head portions of the bolts are tightly pressed on the supporting plate. The high-speed synchronous belt linear sliding table can reduce the production difficulty.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a synchronous belt linear slide, in particular to a high-speed synchronous belt linear slide. Background Art

[0002] The synchronous belt linear slide is a linear slide module that uses a synchronous belt drive. It is mainly used in applications that require linear motion control, such as automation equipment, dispensing machines, laser equipment, woodworking machinery, packaging equipment, and cutting equipment.

[0003] Existing slides, such as a synchronous belt linear guide slide disclosed in the China Patent Library (application number: 201921344557.1), include a base, a slider, a transmission part and a driving part, and slide bars are provided on both sides of the base; the slider is arranged above the base, and the slider is slidably connected to the slide bar, and a pulley part is provided inside the slider, and the bottom of the pulley part is against the upper surface of the base; the transmission part includes a driving wheel, a driven wheel and a transmission belt, and the driving wheel and the driven wheel are respectively installed at both ends of the base, the transmission belt is installed between the driving wheel and the driven wheel, and the transmission belt is connected to the slider to drive the slider to move along the length direction of the slide bar through the transmission part; the driving part is installed on the base and is used to drive the driving wheel; the pulley part includes a wheel frame and a roller, and a wheel groove for installing the wheel frame is provided inside the slider, and the roller is installed on the wheel frame, and the bottom of the roller is in rolling contact with the upper surface of the base.

[0004] In the above-mentioned slide, the wheel frame is directly fixed on the slider, resulting in that the contact tightness between the roller and the base cannot be adjusted. This requires that each component has a high processing and assembly accuracy, which increases the difficulty of production. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a high-speed synchronous belt linear slide table which can reduce the difficulty of processing.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a high-speed synchronous belt linear slide, comprising a crossbeam, a synchronous belt arranged on the crossbeam and a support plate fixed horizontally on the synchronous belt, long strip-shaped raceways are opened on both sides of the width of the crossbeam, at least one roller is arranged at each of the two raceways, and the roller is directly below the support plate, the roller comprises a wheel shell and a bearing installed in the wheel shell, the bearing comprises an inner ring and an outer ring fixedly connected to the wheel shell, and one side of the wheel shell is in the corresponding raceway, characterized in that a strip groove is vertically penetrated through the support plate, and the length of the strip groove extends along the width direction of the crossbeam; the number of strip grooves and rollers is the same and the positions correspond one to one; a straight tube body is vertically pressed between each inner ring and the support plate, a pressure cap is arranged under each inner ring, and a gasket is pressed between the pressure cap and the inner ring at the corresponding position; a bolt is arranged in the strip groove, the bolt rod passes through the corresponding straight tube body and the corresponding inner ring in turn and is screwed into the corresponding pressure cap, and the bolt head is pressed tightly on the support plate.

[0007] The wheel shell is slidably connected to the connecting plate by means of bolts, strip grooves, pressure caps, gaskets, straight tubes and other components, and the sliding direction of the wheel shell is consistent with the width direction of the beam. In this way, the tightness of the fit between the wheel shell and the raceway can be adjusted by loosening the bolts and sliding the wheel shell. This not only facilitates installation and adjustment to reduce the requirements for processing and assembly of various parts and components, and facilitates production, but also enables the wheel shell and the beam to maintain good contact under long-term use, so that the slide always maintains good sliding accuracy.

[0008] In the above-mentioned high-speed synchronous belt linear slide, the inner side surface of the above-mentioned straight tube body is pressed on the bolt rod part, so that the straight tube body slides more closely following the bolt, further facilitating adjustment.

[0009] In the above-mentioned high-speed synchronous belt linear slide, the straight tube body is composed of a metal outer tube and a rubber sleeve fixed inside the metal outer tube, and the two end surfaces of the metal outer tube are respectively pressed tightly on the support plate and the corresponding inner ring, and the inner and outer side walls of the rubber sleeve are respectively pressed on the bolt rod and the metal outer tube. The straight tube body is in contact with the bolt rod through the rubber sleeve. On the premise of ensuring that the straight tube body slides synchronously with the bolt, the elasticity of the rubber sleeve can be used to buffer the vibration generated by the rolling of the roller, delay the loosening of the bolt, and improve the working stability of the slide.

[0010] In the above-mentioned high-speed synchronous belt linear slide, the metal outer tube and the rubber sleeve are formed into a whole by injection molding, so as to greatly improve the combination precision of the two and enhance the overall structural stability of the straight tube body.

[0011] In the above-mentioned high-speed synchronous belt linear slide, an annular groove is opened on the inner wall of the metal outer tube, and the annular groove is coaxially arranged with the metal outer tube. The outer wall of the rubber sleeve extends into the annular groove to form an annular embedded portion that matches the annular groove to form an axial limit, thereby further enhancing the connection strength and stability of the metal outer tube and the rubber sleeve.

[0012] In the above-mentioned high-speed synchronous belt linear slide, the axial cross-section of the annular groove is in the shape of an arc, which is conducive to the molding of the embedded part.

[0013] In the above-mentioned high-speed synchronous belt linear slide, the bottom wall of the metal outer tube is provided with a convex ring coaxial with the metal outer tube. The shape and size of the convex ring match the inner hole of the inner ring, and the convex ring is inserted into the inner ring. This is convenient for assembly and forms a radial limit between the metal outer tube and the inner ring, further facilitating the movement of the roller.

[0014] In the above-mentioned high-speed synchronous belt linear slide, the strip groove is composed of an upper groove and a lower groove, both of which are strip-shaped and connected. The width of the lower groove is smaller than that of the upper groove. The bolt head is in the upper groove and pressed tightly against the bottom wall of the upper groove. The bolt head is accommodated in the strip groove, which can make the top wall of the connecting plate basically flat to adapt to more working conditions.

[0015] Compared with the existing technology, this high-speed synchronous belt linear slide has the following advantages:

[0016] 1. The wheel shell is slidably connected to the connecting plate through bolts, strip grooves, pressure caps, gaskets, straight tubes and other parts, and the sliding direction of the wheel shell is consistent with the width direction of the beam. In this way, the tightness of the wheel shell and the raceway can be adjusted by loosening the bolts and sliding the wheel shell. This is convenient for installation and adjustment to reduce the processing and assembly requirements of various parts and components, and is convenient for production. It can also keep the wheel shell and the beam in good contact under long-term use, so that the slide always maintains good sliding accuracy.

[0017] 2. The straight tube body contacts the bolt rod through the rubber sleeve. On the premise of ensuring that the straight tube body slides synchronously with the bolt, the elasticity of the rubber sleeve can be used to buffer the vibration generated by the rolling of the roller, delay the loosening of the bolt, and improve the working stability of the slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a high-speed synchronous belt linear slide.

[0019] Figure 2 yes Figure 1 A magnified schematic diagram of center A.

[0020] Figure 3 It is a schematic diagram of the connection between the roller and the support plate.

[0021] In the figure, 1, crossbeam; 1a, raceway; 2, synchronous belt; 3, support plate; 3a, strip groove; 3b, upper groove; 3c, lower groove; 4, motor; 5, pulley; 6, roller; 6a, wheel housing; 6b, bearing; 6c, inner ring; 7, straight tube body; 7a, metal outer tube; 7b, rubber sleeve; 7c, embedded part; 7d, convex ring; 8, pressure cap; 9, washer; 10, bolt. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Embodiment 1

[0023] like Figure 1 As shown, the high-speed synchronous belt linear slide comprises a crossbeam 1, a synchronous belt 2 arranged on the crossbeam 1, a power component for driving the synchronous belt 2 to operate, and a support plate 3 horizontally fixed on the synchronous belt 2.

[0024] in,

[0025] The cross beam 1 is in the shape of a long strip and is arranged horizontally. A long strip raceway 1a is provided on both sides of the width of the cross beam 1, and the raceway 1a and the cross beam 1 have the same length extension direction.

[0026] The power component includes a motor 4 and two pulleys 5, wherein the motor 4 is fixed on the beam 1 through a base; the two pulleys 5 are rotatably set on the beam 1, and the axes of the pulleys 5 extend along the width direction of the beam 1; the two pulleys 5 are arranged in parallel along the length direction of the beam 1, and the synchronous belt 2 is wound around the two pulleys 5.

[0027] like Figure 2 and Figure 3 As shown, at least one roller 6 matching the roller 1a is provided at each of the two raceways 1a, the axis of the roller 6 extends vertically, and the roller 6 is directly below the support plate 3. The roller 6 is an existing product, including a wheel shell 6a and a bearing 6b installed in the wheel shell 6a, wherein the wheel shell 6a is made of rubber material, one side of the wheel shell 6a is in the corresponding raceway 1a, and the outer peripheral surface of the wheel shell 6a is pressed against the edge of the corresponding raceway 1a; the type of the bearing 6b is a ball bearing 6b, and the bearing 6b includes an inner ring 6c and an outer ring fixedly connected to the wheel shell 6a. A strip groove 3a vertically penetrates the support plate 3, and the length of the strip groove 3a extends along the width direction of the beam 1. The strip grooves 3a and the rollers 6 are the same in number and their positions correspond one to one. A straight tube body 7 is vertically pressed between each inner ring 6c and the support plate 3, a pressure cap 8 is provided under each inner ring 6c, and a gasket 9 is pressed between the corresponding pressure caps 8 and the inner ring 6c; a bolt 10 is provided in the strip groove 3a, the rod of the bolt 10 passes through the corresponding straight tube body 7 and the corresponding inner ring 6c in turn and is screwed into the corresponding pressure cap 8, and the head of the bolt 10 is pressed tightly on the support plate 3.

[0028] The wheel shell 6a is slidably connected to the connecting plate by means of bolts 10, strip grooves 3a, pressure caps 8, gaskets, straight tube bodies 7 and other components, and the sliding direction of the wheel shell 6a is consistent with the width direction of the crossbeam 1. In this way, the tightness of the fit between the wheel shell 6a and the raceway 1a can be adjusted by loosening the bolts 10 and sliding the wheel shell 6a. This facilitates installation and adjustment to reduce the requirements for processing and assembly of various components and facilitates production. In addition, the wheel shell 6a and the crossbeam 1 can still maintain good contact under long-term use, so that the slide always maintains good sliding accuracy.

[0029] To further illustrate, the inner side surface of the straight tube body 7 is pressed on the rod of the bolt 10, so that the straight tube body 7 slides more closely following the bolt 10, further facilitating adjustment.

[0030] In this embodiment, the structure of the straight tube body 7 is as follows: the straight tube body 7 is composed of a metal outer tube 7a and a rubber sleeve 7b fixed inside the metal outer tube 7a. The metal outer tube 7a can be made of stainless steel or aluminum alloy, and the two end surfaces of the metal outer tube 7a are respectively pressed against the support plate 3 and the corresponding inner ring 6c; the inner and outer side walls of the rubber sleeve 7b are respectively pressed against the rod of the bolt 10 and the metal outer tube 7a. The straight tube body 7 is in contact with the rod of the bolt 10 through the rubber sleeve 7b. On the premise of ensuring that the straight tube body 7 slides synchronously with the bolt 10, the elasticity of the rubber sleeve 7b can be used to buffer the vibration generated by the rolling of the roller 6, delay the loosening of the bolt 10, and improve the working stability of the slide.

[0031] The metal outer tube 7a and the rubber sleeve 7b are formed into a whole by injection molding, so as to greatly improve the precision of the combination of the two and strengthen the overall structural stability of the straight tube body 7. Further explanation, an annular groove is provided on the inner wall of the metal outer tube 7a, and the annular groove is coaxially arranged with the metal outer tube 7a. The outer wall of the rubber sleeve 7b extends into the annular groove to form an annular embedded portion 7c that matches the annular groove to form an axial limit, further strengthening the connection strength and stability of the metal outer tube 7a and the rubber sleeve 7b. Preferably, the axial cross-section of the annular groove is in the shape of an arc, which is conducive to the molding of the embedded portion 7c.

[0032] Furthermore, the bottom wall of the metal outer tube 7a is provided with a convex ring 7d which is coaxial with the metal outer tube 7a. The shape and size of the convex ring 7d match the inner hole of the inner ring 6c, and the convex ring 7d is inserted into the inner ring 6c. This is convenient for assembly and enables the metal outer tube 7a and the inner ring 6c to form a radial limit, further facilitating the movement of the roller 6.

[0033] like Figure 3 As shown, the strip groove 3a is composed of an upper groove 3b and a lower groove 3c, both of which are strip-shaped and connected. The upper groove 3b and the lower groove 3c are coaxially arranged, and the groove width of the lower groove 3c is smaller than the groove width of the upper groove 3b. The head of the bolt 10 is in the upper groove 3b and is pressed tightly against the bottom wall of the upper groove 3b. The head of the bolt 10 is accommodated in the strip groove 3a, which can make the top wall of the connecting plate basically flat to adapt to more working conditions.

[0034] In actual products, each raceway 1 a corresponds to two rollers 6 to enhance the sliding stability and precision of the support plate 3 . Embodiment 2

[0035] The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that the rubber sleeve 7b is bonded and fixedly connected to the metal outer tube 7a.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A high-speed synchronous belt linear slide, comprising a crossbeam (1), a synchronous belt (2) arranged on the crossbeam (1), and a support plate (3) horizontally fixed on the synchronous belt (2), wherein both sides of the width of the crossbeam (1) are provided with elongated rolling tracks (1a), each of the two rolling tracks (1a) is provided with at least one roller (6), and the roller (6) is located directly below the support plate (3), the roller (6) comprises a wheel shell (6a) and a bearing (6b) installed in the wheel shell (6a), the bearing (6b) comprises an inner ring (6c) and an outer ring fixedly connected to the wheel shell (6a), and one side of the wheel shell (6a) is located in the corresponding rolling track (1a), characterized in that: A strip groove (3a) vertically penetrates the support plate (3), and the length of the strip groove (3a) extends along the width direction of the crossbeam (1); the strip grooves (3a) and the rollers (6) are of the same number and have corresponding positions; a straight tube body (7) is vertically pressed between each inner ring (6c) and the support plate (3), a pressure cap (8) is provided under each inner ring (6c), and a gasket (9) is pressed between the corresponding pressure caps (8) and the inner rings (6c); a bolt (10) is provided in the strip groove (3a), and the rod of the bolt (10) passes through the corresponding straight tube body (7) and the corresponding inner ring (6c) in sequence and is screwed into the corresponding pressure cap (8), and the head of the bolt (10) is pressed tightly against the support plate (3).

2. The high-speed synchronous belt linear slide according to claim 1, characterized in that: The inner side surface of the straight tube body (7) is pressed onto the rod of the bolt (10).

3. The high-speed synchronous belt linear slide according to claim 2, characterized in that: The straight tube body (7) is composed of a metal outer tube (7a) and a rubber sleeve (7b) fixed inside the metal outer tube (7a), and both end surfaces of the metal outer tube (7a) are respectively pressed against the support plate (3) and the corresponding inner ring (6c), and the inner and outer side walls of the rubber sleeve (7b) are respectively pressed against the rod of the bolt (10) and the metal outer tube (7a).

4. The high-speed synchronous belt linear slide according to claim 3, characterized in that: The metal outer tube (7a) and the rubber sleeve (7b) are formed into a whole by injection molding.

5. The high-speed synchronous belt linear slide according to claim 4, characterized in that: An annular groove is provided on the inner side wall of the metal outer tube (7a), and the annular groove is coaxially arranged with the metal outer tube (7a). The outer wall of the rubber sleeve (7b) extends into the annular groove to form an annular embedded portion (7c) that matches the annular groove.

6. The high-speed synchronous belt linear slide according to claim 5, characterized in that: The axial cross section of the annular groove is in the shape of a circular arc.

7. The high-speed synchronous belt linear slide according to claim 3, characterized in that: The bottom wall of the metal outer tube (7a) is provided with a convex ring (7d) coaxial with the metal outer tube (7a); the shape and size of the convex ring (7d) match the inner hole of the inner ring (6c), and the convex ring (7d) is inserted into the inner ring (6c).

8. The high-speed synchronous belt linear slide according to claim 1, characterized in that: The strip groove (3a) is composed of an upper groove (3b) and a lower groove (3c) both in strip shape and connected to each other. The groove width of the lower groove (3c) is smaller than the groove width of the upper groove (3b). The head of the bolt (10) is located in the upper groove (3b) and is tightly pressed against the bottom wall of the upper groove (3b).

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