Small sliding table air cylinder

Abstract

The utility model provides a small sliding table air cylinder which comprises a base and a sliding table located above the base, and a crossed linear rail is arranged between the base and the sliding table so that the sliding table can form the freedom degree of sliding in the front-back direction of the base. A longitudinal air cylinder, a longitudinal piston and a piston rod are arranged in the middle area, in the width direction, of one end of the sliding table, a fixing plate is arranged at one end of the base, and the tail end of the piston rod is matched with the fixing plate to exert force to drive the sliding table. Two first air connecting openings communicating with the two ends of the longitudinal air cylinder correspondingly are formed in the side portion of the sliding table. The utility model has the advantages of compact structure, strong bearing capacity, good rigidity and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of cylinders, specifically to a small slide cylinder. Background Technology

[0002] The current slide cylinder is installed by arranging four rows of linear rails between the base and the slide, which results in a large space occupied in the width direction of its sliding contact area. It also has problems such as troublesome installation and adjustment, poor load-bearing capacity, and difficulty in miniaturization design. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a small slide cylinder with a compact structure, strong load-bearing capacity, good rigidity, and stable operation.

[0004] To address the above problems, the following technical solution is provided: a small slide cylinder, comprising a base and a slide located above the base, wherein a cross rail is provided between the base and the slide to allow the slide to slide freely in the front-back direction of the base; a longitudinal cylinder is provided at one end of the slide in the middle region of its width direction, and a longitudinal piston and piston rod are provided thereon; a fixed plate is provided at one end of the base, and the end of the piston rod is fitted with the fixed plate to drive the slide; two air inlets are provided on the side of the slide, which are respectively connected to the two ends of the longitudinal cylinder.

[0005] The present invention is further configured such that the cross rail includes a central slide rail and side slide rails, and the side slide rails are two separate ones located on both sides of the central slide rail; V-shaped raceways are provided on both sides of the central slide rail and on the side of the side slide rail facing the central slide rail, and cross rollers are provided between the V-shaped raceways of the central slide rail and the side slide rails.

[0006] The present invention is further configured such that the central slide rail is fixed in the middle region of the base width direction and faces the front-rear direction of the base; the side slide rail is fixed to the bottom of the slide table.

[0007] The present invention is further configured such that the bottom of the slide table is provided with two stops spaced apart from each other, one of the stops being provided with clamping screws spaced apart along its length; the clamping screws on the stops are tightened to abut against the side slide rail, thereby adapting it to the central slide rail, and then adapting the central slide rail to the other side slide rail while abutting against the other stop to achieve gap clamping; the side slide rail is also provided with screw holes spaced apart along its length, and the side slide rail is fixed to the bottom of the slide table by screws.

[0008] The present invention is further configured such that the base is provided with positioning pins arranged at intervals along the length direction of the central slide rail, and the central slide rail is provided with positioning holes adapted to the positioning pins; the central slide rail is fixed to the base by two screws.

[0009] The present invention is further provided that the side of the slide table is provided with two air inlets, which are respectively connected to the two ends of the longitudinal cylinder, and the air inlets are sealed by detachable plugs.

[0010] The present invention is further configured such that the upper surface of the slide is provided with a recessed vertical cylinder, the vertical cylinder is provided with a vertical piston, and the center of the top surface of the vertical piston is provided with a protruding push rod; the upper surface of the slide is also provided with an end plate that restricts the vertical piston from disengaging, and the end plate is provided with a through hole for the push rod to pass through; the slide is also provided with an air inlet three connected to the bottom of the vertical cylinder.

[0011] The present invention is further configured such that the vertical cylinder, the vertical piston, and the push rod are all in two sets, and are spaced apart from each other in the width direction of the slide table; adjacent vertical cylinders are connected by an intermediate air passage.

[0012] The present invention is further configured to include a return spring sleeved on the top rod and supported between the upper surface of the vertical piston and the end plate.

[0013] The present invention is further configured such that the slide table is also provided with an air inlet four connected to the bottom of the vertical cylinder, and the air inlet four is sealed by a detachable plug.

[0014] The beneficial effects of this utility model are:

[0015] 1. The use of cross-rails can effectively improve accuracy and rigidity and reduce friction, and the overall height is low, which effectively reduces the overall height of the small slide cylinder; the two air inlets are used to control the movement direction of the longitudinal piston, thereby realizing the displacement of the slide; the piston rod end is provided with an annular groove, and the fixed plate is provided with a U-shaped opening for engaging with the annular groove, which facilitates disassembly and assembly.

[0016] 2. The cross rollers and V-shaped raceways have a large contact area, small elastic deformation, and low friction, making them suitable for micro-feeding and low-speed stable motion. Within a limited stroke, the reciprocating linear motion accuracy of the cross rails is higher than that of the four-row rails, and the structural design is flexible, with high rigidity and high load capacity.

[0017] 3. The stop block provides lateral positioning and support, and the gap is adjusted by tightening the clamping screw, ensuring installation accuracy;

[0018] 4. The positioning pin and positioning hole are matched to ensure the relative positional accuracy between the base and the central slide rail during disassembly and assembly. The second screw passes through the base from bottom to top and is screwed into the central slide rail for fixation.

[0019] 5. Due to size constraints, existing anti-disengagement measures for vertical pistons often involve installing anti-disengagement pins on the outer edge of the vertical cylinder, using their nuts to block the vertical piston. These pins are typically spaced 180 degrees apart, which can easily cause tilting when the vertical piston moves upward, resulting in poor vertical constraint on the vertical piston and push rod. Using end plates and through holes can achieve reliable anti-disengagement while guiding the push rod through the through holes, ensuring verticality during movement.

[0020] 6. The return spring is used to control the return of the vertical piston. A tower spring is selected as the return spring, which can effectively reduce the height after compression, so as to ensure the stroke of the vertical piston while reducing the overall height of the entire small slide cylinder. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the first state of the present invention when it is adapted to the fixture.

[0022] Figure 2 This is a three-dimensional structural diagram of the second state of the present invention when it is adapted to the fixture.

[0023] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the fixture in its separated state.

[0024] Figure 4 This utility model Figure 2 A three-dimensional structural diagram of the fixture in its separated state.

[0025] Figure 5 This is a three-dimensional structural diagram of the present invention from a first cross-sectional perspective.

[0026] Figure 6 This is a three-dimensional structural diagram of the second cross-sectional view of the present invention.

[0027] Figure 7 This is a three-dimensional structural diagram of the present invention from a third sectional perspective.

[0028] Figure 8 This is a three-dimensional structural diagram of the fourth cross-sectional view of this utility model.

[0029] Figure 9 This is a schematic diagram of the first exploded three-dimensional structure of this utility model.

[0030] Figure 10 This is a schematic diagram of the second explosive three-dimensional structure of this utility model.

[0031] The labels in the diagram have the following meanings: 10-Base; 11-Fixing plate; 111-U-shaped opening; 12-Positioning pin; 20-Slide table; 21-Longitudinal cylinder; 211-Longitudinal piston; 212-Piston rod; 213-Annular groove; 22-Air inlet one; 23-Stop block; 231-Tightening screw; 24-Air inlet two; 25-Removable plug; 26-Vertical cylinder; 261-Vertical piston; 262-Push rod; 263-Intermediate air passage; 264-Steel ball; 265-Reset spring; 27-End plate; 271-Through hole; 28-Air inlet three; 29-Air inlet four; 30-Cross rail; 31-Central slide rail; 311-Positioning hole; 32-Side slide rail; 321-Screw hole; 33-V-shaped raceway; 34-Screw one; 35-Screw two. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0033] refer to Figures 1 to 10 ,like Figures 1 to 10 The small slide cylinder shown includes a base 10 and a slide 20 located above the base 20. A cross rail 30 is provided between the base 10 and the slide 20 to give the slide 20 a degree of freedom to slide in the front-back direction of the base 10. A longitudinal cylinder 21 is provided at one end of the slide 20 in the middle area of ​​its width direction, and a longitudinal piston 211 and a piston rod 212 are provided. A fixed plate 11 is provided at one end of the base 10. The end of the piston rod 212 is adapted to the fixed plate 11 to drive the slide 20. Two air inlets 22 are provided on the side of the slide 20, which are respectively connected to the two ends of the longitudinal cylinder 21.

[0034] In the above structure, the use of cross rails 30 can effectively improve accuracy and rigidity and reduce friction, and the overall height is low, which effectively reduces the overall height of the small slide cylinder; the two air inlets 22 are used to control the moving direction of the longitudinal piston 211, thereby realizing the displacement of the slide 20; the piston rod 212 has an annular groove 213 at the end, and the fixing plate 11 has a U-shaped opening 111 for engaging with the annular groove 213, which facilitates disassembly and assembly.

[0035] In this embodiment, the cross rail 30 includes a central slide rail 31 and side slide rails 32. The side slide rails 32 are two in number, located on both sides of the central slide rail 31. V-shaped roller tracks 33 are provided on both sides of the central slide rail 31 and on the side of the side slide rails 32 facing the central slide rail 31. Cross rollers (not shown in the figure) are provided between the V-shaped roller tracks 33 of the central slide rail 31 and the side slide rails 32.

[0036] In the above structure, the cross roller (not shown in the figure) has a large contact area with the V-shaped raceway 33, resulting in small elastic deformation and low friction, making it suitable for micro-feeding and low-speed stable motion. Within a limited stroke, the reciprocating linear motion accuracy of the cross rail 30 is higher than that of the four-row rail, and the structure design is flexible, with high rigidity and high load capacity.

[0037] In this embodiment, the central slide rail 31 is fixed to the middle area of ​​the base 10 in the width direction and faces the front and rear direction of the base 10; the side slide rail 32 is fixed to the bottom of the slide table 20.

[0038] In the above structure, the fixed positions of the central slide rail 31 and the side slide rail 32 can be interchanged as needed.

[0039] In this embodiment, the bottom of the slide table 20 is provided with two spaced-apart blocks 23, one of which is provided with clamping screws 231 spaced apart along its length. The clamping screws 231 on the block 23 are tightened to abut against the side slide rail 32, thereby adapting it to the central slide rail 31. Then, the central slide rail 31 adapts to the other side slide rail 32 and abuts against the other block 23 to achieve gap clamping. The side slide rail 32 is also provided with screw holes 321 spaced apart along its length. The side slide rail 32 is fixed to the bottom of the slide table 20 by screws 34.

[0040] In the above structure, the stop block 23 is used to provide lateral positioning and support, and the gap is adjusted by tightening the clamping screw 231, thus ensuring installation accuracy.

[0041] In this embodiment, the base 10 is provided with positioning pins 12 spaced apart along the length of the central slide rail 31, and the central slide rail 31 is provided with positioning holes 311 that are adapted to the positioning pins 12; the central slide rail 31 is fixed to the base 10 by screws 35.

[0042] In the above structure, the positioning pin 12 is adapted to the positioning hole 311 to ensure the relative positional accuracy between the base 10 and the central slide rail 31 during disassembly and assembly. The screw 35 passes through the base 10 from bottom to top and is screwed into the central slide rail 31 for fixation.

[0043] In this embodiment, the side of the slide table 20 is also provided with two air inlets 24 that are respectively connected to both ends of the longitudinal cylinder 21, and the air inlets 24 are sealed by removable plugs 25.

[0044] In the above structure, the second air inlet 24 can be connected to other control air pipes after the detachable plug 25 is removed as needed.

[0045] In this embodiment, the upper surface of the slide table 20 is provided with a recessed vertical cylinder 26, the vertical cylinder 26 is provided with a vertical piston 261, and the top surface of the vertical piston 261 is provided with a protruding push rod 262; the upper surface of the slide table 20 is also provided with an end plate 27 that restricts the vertical piston 261 from disengaging, and the end plate 27 is provided with a through hole 271 for the push rod 262 to pass through; the slide table 20 is also provided with an air inlet 28 connected to the bottom of the vertical cylinder 26.

[0046] In the above structure, due to the influence of volume, the existing anti-detachment of the vertical piston 261 is often achieved by installing anti-detachment pins on the outer edge of the vertical cylinder 26 and using their nuts to block the vertical piston 261. They are generally arranged at 180-degree intervals, which can easily cause the vertical piston 261 to tilt when it moves upward, resulting in poor vertical constraint effect on the vertical piston 261 and the push rod 262. Using the end plate 27 and the through hole 271 can achieve reliable anti-detachment while guiding the push rod 262 with the through hole 271, ensuring the verticality during movement.

[0047] In this embodiment, the vertical cylinder 26, vertical piston 261, and push rod 262 are all in two sets, and are spaced apart from each other in the width direction of the slide table 20; adjacent vertical cylinders 26 are connected by an intermediate air passage 263.

[0048] In the above structure, the intermediate air passage 263 is formed by drilling a hole through the side of the slide table 20 and passing through the bottom of the two vertical cylinders 26. After the drilling is completed, the opening of the intermediate air passage 263 at the side of the slide table 20 is sealed by filling with steel balls 264.

[0049] In this embodiment, a return spring 265 is also included, which is sleeved on the top rod 262 and supported between the upper surface of the vertical piston 261 and the end plate 27.

[0050] In the above structure, the return spring 265 is used to control the return of the vertical piston 261. The return spring 265 is selected as a tower spring, which can effectively reduce the height after compression, so as to ensure the stroke of the vertical piston 261 while reducing the overall height of the entire small slide table 20 cylinder.

[0051] In this embodiment, the slide table 20 is also provided with an air inlet 29 connected to the bottom of the vertical cylinder 26, and the air inlet 29 is sealed by a removable plug 25.

[0052] In the above structure, the air inlet 29 can be connected to other control air pipes after the removable plug 25 is removed as needed.

[0053] In this embodiment, the threads on screw 34, screw 35, and removable plug 25 are simplified and therefore not shown.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A small slide cylinder, comprising a base and a slide located above the base, characterized in that: The base and the slide are provided with intersecting rails to give the slide a degree of freedom to slide in the front and back direction of the base; a longitudinal cylinder with a longitudinal piston and piston rod is provided in the middle area of ​​the width direction at one end of the slide; a fixed plate is provided at one end of the base; the end of the piston rod is adapted to the fixed plate to drive the slide; two air inlets are provided on the side of the slide, which are respectively connected to the two ends of the longitudinal cylinder.

2. The small slide cylinder according to claim 1, characterized in that: The cross rails include a central slide rail and side slide rails. There are two side slide rails located on both sides of the central slide rail. V-shaped raceways are provided on both sides of the central slide rail and on the side of the side slide rail facing the central slide rail. Cross rollers are provided between the V-shaped raceways of the central slide rail and the side slide rails.

3. A small slide cylinder according to claim 2, characterized in that: The central slide rail is fixed in the middle area of ​​the base in the width direction and faces the front and rear direction of the base; the side slide rail is fixed to the bottom of the slide table.

4. A small slide cylinder according to claim 3, characterized in that: The bottom of the slide table is provided with two spaced-apart blocks, one of which is provided with clamping screws spaced apart along its length. The clamping screws on the block are tightened to abut against the side slide rail, which then adapts to the central slide rail. The central slide rail then adapts to the other side slide rail and abuts against the other block to achieve gap tightening. The side slide rail is also provided with screw holes spaced apart along its length. The side slide rail is fixed to the bottom of the slide table by screws.

5. A small slide cylinder according to claim 3, characterized in that: The base is provided with positioning pins spaced apart along the length of the central slide rail, and the central slide rail is provided with positioning holes that fit the positioning pins; the central slide rail is fixed to the base by two screws.

6. A small slide cylinder according to claim 1, characterized in that: The side of the slide is also provided with two air inlets, which are respectively connected to both ends of the longitudinal cylinder. The air inlets are sealed by removable plugs.

7. A small slide cylinder according to claim 1, characterized in that: The slide plate has a recessed vertical cylinder on its upper surface, and the vertical cylinder has a vertical piston. The top surface of the vertical piston has a protruding push rod at its center. The slide plate also has an end plate that restricts the vertical piston from disengaging. The end plate has a through hole for the push rod to pass through. The slide plate also has an air inlet three that is connected to the bottom of the vertical cylinder.

8. A small slide cylinder according to claim 7, characterized in that: The vertical cylinder, vertical piston, and push rod are all in two sets, spaced apart from each other in the width direction of the slide table; adjacent vertical cylinders are connected by an intermediate air passage.

9. A small slide cylinder according to claim 7 or 8, characterized in that: It also includes a return spring that is fitted onto the push rod and supported between the upper surface of the vertical piston and the end plate.

10. A small slide cylinder according to claim 7, characterized in that: The slide is also provided with an air inlet four connected to the bottom of the vertical cylinder, and the air inlet four is sealed by a removable plug.

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