Side rail type precise sliding table air cylinder

Abstract

A side rail type precise sliding table air cylinder comprises an air cylinder body, a guide rail and a sliding table, a guide groove is formed in the upper surface of the air cylinder body, the guide rail is fixedly installed in the guide groove, a sliding block matched with the guide rail is connected to the bottom face of the sliding table, and a fixing block is integrally formed on the side, corresponding to the extending end of a piston rod, of the sliding table and fixedly connected with the extending end of the piston rod. A first annular groove is formed in the circumferential wall face of the piston of the piston rod and used for installing a magnetic ring, a second annular groove is formed in the bottom wall face of the piston, a first buffering cushion is fixedly installed in the second annular groove, a second buffering cushion is further installed on the piston rod and located above the piston, and the first sliding groove in the guide rail and the second sliding groove in the sliding block are both arc-surface grooves. The size of the cambered surface groove is matched with the size of the ball, and a rectangular groove is further formed in the bottom of the first sliding groove which is arranged to be the cambered surface groove. The device is high in working precision, small in friction force, high in carrying and loading capacity and reasonable in overall structural design.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, in particular to a side rail type precision slide cylinder. Background Art

[0002] The slide cylinder of the prior art includes a cylinder, a piston rod, and an end cover. The piston rod is engaged with the end cover, which has a mounting hole for installing peripheral equipment. The cylinder pushes the piston rod to move the end cover with the peripheral equipment. Its disadvantage is that since the force of the peripheral equipment load is on the front cover, and the piston rod is engaged with the front cover, once the load exceeds the bearing capacity of the piston rod, the piston rod will bend downward, affecting the working accuracy. At the same time, its working friction is large. When the cylinder and the end cover repeatedly rotate, they will collide with each other, and the service life of the slide cylinder will be shortened. Utility Model Content

[0003] In view of the shortcomings of the above-mentioned prior art, the purpose of the present utility model is to provide a side rail type precision slide cylinder with high working accuracy, low friction and strong load carrying capacity.

[0004] The technical solution adopted by the utility model to solve its technical problem is a side rail type precision slide cylinder, comprising a cylinder body, a guide rail, and a slide, the upper surface of the cylinder body is penetrated by a guide groove in the front and back, the guide rail is fixedly installed in the guide groove, a slider is connected to the bottom surface of the slide, the slider and the guide rail are slidably matched to make the slide move linearly, the piston rod of the cylinder body extends to the outside, the slide is integrally formed with a fixed block on one side corresponding to the protruding end of the piston rod, the fixed block is fixedly connected to the protruding end of the piston rod, and a first piston circumferential wall surface of the piston rod is provided. Ring groove, the first ring groove is used to install a magnetic ring, and the magnetic ring cooperates with an external magnetic switch. A second ring groove is provided on the bottom wall of the piston, and a first buffer pad is fixedly installed in the second ring groove. The first buffer pad cooperates with the rear cover of the cylinder body for buffering. The piston rod is also equipped with a second buffer pad above the piston, and the second buffer pad cooperates with the front cover of the cylinder body for buffering. The first slide groove on the guide rail and the second slide groove on the slider are both set as arc grooves, the size of the arc groove is adapted to the size of the ball, and the bottom of the first slide groove set as an arc groove is also provided with a rectangular groove.

[0005] The advantages of adopting the above scheme are: by setting up a slide, and making the slide and the cylinder body slide together through the slider and the guide rail, the friction resistance of the two is low, the operation of the slide is also precise, and the load force concentrated on the front cover can be effectively dispersed, so that the piston rod is not easy to deform. Moreover, since a first buffer pad is set in the second ring groove at the bottom of the piston, the first buffer pad can effectively avoid the problem of rigid collision between the piston and the rear cover. A second buffer pad is also set above the piston. The second buffer pad can effectively avoid the problem of rigid collision between the piston and the front cover, thereby extending the service life of the slide cylinder, and by setting a magnetic ring in the first ring groove of the piston, the magnetic ring will move with the piston rod The position change is achieved by the movement of the piston to control the on and off of the magnetic control switch, thereby achieving the purpose of precise positioning. Therefore, the ventilation of the corresponding air pipe can be controlled according to the position change to further reduce the impact force, thereby greatly improving the service life of the slide cylinder and making the operation of the slide more stable. The first slide groove on the guide rail and the second slide groove on the slider are both set to an arc groove structure suitable for the ball, and the rolling of the ball is not easy to get stuck. The setting of the rectangular groove allows foreign matter or dust to flow into the rectangular groove as the slider slides, so as not to interfere with the operation of the ball, so that the device can operate stably for a long time, reduce maintenance costs, improve the working efficiency of the device, and the working accuracy of the slide is also higher.

[0006] Furthermore, the piston rod and the piston are configured as a split structure, and the rear end of the piston rod is configured as a countersunk section, the countersunk section is adapted to the axial through hole of the piston, and the countersunk hole at the bottom of the countersunk section causes the end of the piston rod to expand radially under the action of an external tool.

[0007] In the above scheme, by setting the piston rod and the piston as a split structure, the piston and the piston rod can be made of different materials and different processes, the structural design is reasonable, and the rear end of the piston rod is set as a countersunk section. After assembly, an external tool is inserted into the countersunk hole to cause this end of the piston rod to expand radially, that is, to stretch the countersunk section to achieve limiting, and the assembly method is also reasonable.

[0008] Furthermore, the front end of the piston rod is set as a threaded section, and two facing T-shaped nuts are connected to the threaded section. The nuts are set on both sides of the fixing hole on the fixing block, and the vertical parts of the nuts are adapted to the fixing holes.

[0009] In the above scheme, the piston rod is fixed to the fixed block by two nuts on the threaded section, and the nut is set to a T-shaped structure, and the vertical part of the nut of the T-shaped structure is adapted to the fixing hole, so that the nut can fix the piston rod while the vertical part can also achieve limited cooperation with the fixing hole, so that the cooperation between the piston rod and the fixed block is not easy to shake, and the working accuracy will be higher.

[0010] Furthermore, the slide is provided with a plurality of first mounting screw holes on one side of the mounting hole, so the fixing block is provided with a plurality of second mounting screw holes, and the fixing block is also provided with an avoidance groove that cooperates with the nut on the outside.

[0011] In the above scheme, the first mounting screw hole and the second mounting screw hole can be used for installing external jigs. The setting of the avoidance groove prevents the outer nut from protruding from the surface of the fixed block. Therefore, the jig can be installed on the fixed block and the slide according to the use environment, which makes better use and more reasonable installation.

[0012] Furthermore, a first axial air vent and a first radial air vent are connected at the lower part of the cylinder body. The first axial air vent and the first radial air vent are both set through and used to cooperate with the first air hole of the cylinder body. The first axial air vent and the first radial air vent are both provided with corresponding first blocking parts.

[0013] In the above scheme, the first axial vent hole and the first radial vent hole are set through, and the installation position of the air pipe can be selected according to the installation environment. It is only necessary to block the remaining through positions with the first blocking piece to avoid gas leakage, and the structural design is more reasonable.

[0014] Furthermore, the upper part of the cylinder body is provided with a second axial air vent and a second radial air vent that are connected below the guide groove. The second axial air vent is provided on the rear surface of the cylinder body, and the second radial air vent is provided through. The second axial air vent and the second radial air vent are used to cooperate with the second air hole of the cylinder, and the second axial air vent and / or the second radial air vent are provided with the corresponding first blocking member.

[0015] In the above scheme, the second axial vent hole and the second radial vent hole are connected to each other, and the installation position of the air pipe can be selected according to the installation environment. It is only necessary to block the remaining through positions with the first blocking member to avoid gas leakage. At the same time, since the guide rail is installed on the upper surface of the cylinder body, the second axial vent hole is arranged on the rear surface of the cylinder body, thereby avoiding interference and making the structural design more reasonable.

[0016] Furthermore, a plurality of axial through slots are formed on both the left and right side surfaces of the cylinder body, and the lower ends of the axial through slots are in an arc-shaped structure for clamping the magnetic switch.

[0017] In the above solution, by providing an axial through groove of a special shape, the magnetic switch and the cylinder body are installed in an integrated manner, the magnetic control cooperation is more accurate and convenient, and the structural design is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural sectional view of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the matching structure of the guide rail and the slider of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the slide and fixed block of the utility model;

[0023] Figure 6 This is a structural diagram of the piston rod and piston of the utility model.

[0024] In the figure: 1-cylinder body, 2-guide rail, 3-slide, 4-guide groove, 5-slider, 6-piston rod, 7-fixed block, 8-piston, 9-first ring groove, 10-magnetic ring, 11-second ring groove, 12-first buffer pad, 13-rear cover, 14-second buffer pad, 15-front cover, 16-first slide groove, 17-second slide groove, 18-ball, 19-rectangular groove, 20-counterbore section, 21-threaded section, 22-nut, 23-first mounting screw hole, 24-second mounting screw hole, 25-avoidance groove, 26-first axial vent, 27-first radial vent, 28-first blocking piece, 29-second axial vent, 30-second radial vent, 31-axial through groove, 32-second blocking piece. DETAILED DESCRIPTION

[0025] To more clearly illustrate the embodiments of the present invention and / or the technical solutions in the prior art, the following describes specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. A person skilled in the art can, without inventive effort, derive other drawings and other embodiments from these drawings. References to orientations only represent relative positional relationships between components, not absolute positional relationships.

[0026] See also Figures 1 to 6When the cam 3 is in the air, the guide rail 2 is fixed on the guide groove 4, and the bottom surface of the cam 3 is fixed with a slider 5. The slider 5 and the guide rail 2 are slidably matched by the ball bearings 18 to make the cam 3 move linearly.

[0027] In this embodiment, a first annular groove 9 is provided on the peripheral wall surface of the piston 8 of the piston rod 6. The first annular groove 9 is used to install a magnetic ring 10. The magnetic ring 10 cooperates with an external magnetic switch. A second annular groove 11 is provided on the bottom wall surface of the piston 8. A first buffer pad 12 is fixedly installed in the second annular groove 11. The first buffer pad 12 is buffered with the rear cover 13 of the cylinder body 1. The piston rod 6 is further provided with a second buffer pad 14 above the piston 8. The second buffer pad 14 is buffered with the front cover 15 of the cylinder body 1. By arranging the first buffer pad 12 in the second annular groove 11 at the bottom of the piston 8, the first buffer pad 12 can effectively avoid the piston In order to solve the problem of rigid collision between the piston 8 and the rear cover 13, a second buffer pad 14 is further provided above the piston 8. The second buffer pad 14 can effectively avoid the problem of rigid collision between the piston 8 and the front cover 15, thereby extending the service life of the slide cylinder, and by providing a magnetic ring 10 in the first ring groove 9 of the piston 8, the magnetic ring 10 will change its position as the piston rod 6 and the piston 8 move to control the on and off of the magnetic control switch, thereby achieving the purpose of precise positioning. Therefore, whether the corresponding air pipe is ventilated can be controlled according to the position change to further reduce the impact force, thereby greatly improving the service life of the slide cylinder and making the slide 3 run more smoothly.

[0028] In this embodiment, the first slide groove 16 on the guide rail 2 and the second slide groove 17 on the slider 5 are both set as cambered grooves, the size of the cambered grooves is adapted to the size of the ball 18, and a rectangular groove 19 is also provided at the bottom of the first slide groove 16 set as the cambered groove. The first slide groove 16 on the guide rail 2 and the second slide groove 17 on the slider 5 are both set as cambered groove structures adapted to the ball 18, and the rolling of the ball 18 is not prone to jamming. At the same time, the position of the ball 18 is limited by the ball baffle. The setting of the rectangular groove 19 allows foreign matter or dust to flow into the rectangular groove 19 as the slider 5 slides, thereby not interfering with the operation of the ball 18, so that the device can operate stably for a long time, reduce maintenance costs, improve the working efficiency of the device, and the working accuracy of the slide 3 is also higher.

[0029] In this embodiment, the piston rod 6 and the piston 8 are configured as a split structure, and the rear end of the piston rod 6 is configured as a countersunk section 20, which is adapted to the axial through hole of the piston 8. The countersunk hole at the bottom of the countersunk section 20 causes the end of the piston rod 6 to expand radially under the action of an external tool. By configuring the piston rod 6 and the piston 8 as a split structure, the piston 8 and the piston rod 6 can be made of different materials and different processes, and the structural design is reasonable. The rear end of the piston rod 6 is configured as the countersunk section 20. After assembly, the external tool is inserted into the countersunk hole to cause this end of the piston rod 6 to expand radially, that is, the countersunk section 20 is stretched to achieve limiting, and the assembly method is also reasonable.

[0030] In this embodiment, the front end of the piston rod 6 is set as a threaded section 21, and two T-shaped nuts 22 facing each other are connected to the threaded section 21. The nuts 22 are set on both sides of the fixing hole on the fixing block 7. The vertical part of the nut 22 is adapted to the fixing hole. The piston rod 6 is fixed to the fixing block 7 through the two nuts 22 on the threaded section 21. The nut 22 is set as a T-shaped structure, and the vertical part of the nut 22 of the T-shaped structure is adapted to the fixing hole, so that the nut 22 can not only fix the piston rod 6, but also achieve limited cooperation with the fixing hole, so that the cooperation between the piston rod 6 and the fixing block 7 is not easy to shake, and the working accuracy will be higher.

[0031] In this embodiment, a plurality of first mounting screw holes 23 are provided on one side of the mounting hole on the slide 3, a plurality of second mounting screw holes 24 are provided on the fixed block 7, and an avoidance groove 25 for matching the outer nut 22 is provided on the fixed block 7. The first mounting screw holes 23 and the second mounting screw holes 24 can be used for installing an external jig. The setting of the avoidance groove 25 prevents the outer nut 22 from protruding from the surface of the fixed block. In this way, the same jig can be installed on both the slide 3 and the fixed block 7. Therefore, the jig can be installed on the fixed block 7 and the slide 3 according to the use environment, which makes better use and more reasonable installation.

[0032] In this embodiment, a first axial vent hole 26 and a first radial vent hole 27 are provided at the bottom of the cylinder body 1. The first axial vent hole 26 and the first radial vent hole 27 are both provided through and are used to match the first air hole of the cylinder body 1. The first axial vent hole 26 and the first radial vent hole 27 are both provided with corresponding first blocking members 28. By using the first axial vent hole 26 and the first radial vent hole 27 provided through, four first connection ports are formed on the cylinder body 1, so that customers can choose the installation position of the air pipe according to the installation environment. , it is only necessary to use the first blocking piece 28 to block the remaining penetration positions to avoid gas leakage, and the structural design is more reasonable. It should be noted that the first blocking piece 28 can be a steel ball or a hexagon socket bolt, and an internal thread can be set at the first connecting port. More specifically, when the air pipe is installed on one side of the first axial vent 26, a first blocking piece 28 is set between the other side and the first vent. At this time, the first blocking piece 28 can be a steel ball, and two first blocking pieces 28 will be set on the first radial vent 27. At this time, the two first blocking pieces 28 are hexagon socket bolts.

[0033] In this embodiment, a second axial air vent 29 and a second radial air vent 30 are provided at the top of the cylinder body 1 below the guide groove 4. The second axial air vent 29 is provided on the rear surface of the cylinder body 1, and the second radial air vent 30 is provided through. The second axial air vent 29 and the second radial air vent 30 are used to cooperate with the second air hole of the cylinder body 1, and the second axial air vent 29 and / or the second radial air vent 30 are provided with corresponding first blocking members 28. More specifically, three second connecting ports are formed on the cylinder body 1. When the air pipe cooperates with the two axial air vents 29, the first blocking members 28 are provided at the second connecting ports on both sides of the two radial air vents 30. At this time, the first blocking members 28 are all hexagonal. Angle bolt, when the second connecting port on one side of the second radial vent 30 of the trachea is matched, a first blocking piece 28 is set at the second connecting port on the other side of the second radial vent 30, and a first blocking piece 28 is set between the second axial vent 29 and the second vent. At this time, the two first blocking pieces 28 can be a hexagon socket bolt and a steel ball respectively. With the above design, the user can choose the installation position of the trachea according to the installation environment. It is only necessary to block the remaining through positions with the first blocking piece 28 to avoid gas leakage. At the same time, since the guide rail is installed on the upper surface of the cylinder body 1, the second axial vent 29 is set on the rear surface of the cylinder body 1, thereby avoiding interference and making the structural design more reasonable.

[0034] In this embodiment, a plurality of axial through grooves 31 are formed on both the left and right side surfaces of the cylinder body 1. The lower ends of the axial through grooves 31 are arc-shaped structures for clamping the magnetic switch. By setting the axial through grooves 31 of special shapes, the magnetic switch and the cylinder body 1 are integrated into one installation, the magnetic control cooperation is more accurate and convenient, and the structural design is reasonable.

[0035] In this embodiment, in order to facilitate the forming of the first air hole and the second air hole, the first air hole and the second air hole are both set through the cylinder body 1. Therefore, a second sealing member 32 will be set at the corresponding positions of the first air hole and the second air hole. The second sealing member 32 can also be a hexagon socket bolt and / or a steel ball.

[0036] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A side rail type precision slide cylinder, comprising a cylinder body (1), a guide rail (2), and a slide (3), wherein a guide groove (4) is provided through the upper surface of the cylinder body (1) in front and back, the guide rail (2) is fixedly installed in the guide groove (4), a slider (5) is connected to the bottom surface of the slide (3), the slider (5) and the guide rail (2) are slidably matched to enable the slide (3) to move linearly, the piston rod (6) of the cylinder body (1) extends to the outside, and a fixed block (7) is integrally formed on one side of the slide (3) corresponding to the extended end of the piston rod (6), and the fixed block (7) is fixedly connected to the extended end of the piston rod (6), characterized in that: A first annular groove (9) is provided on the peripheral wall surface of the piston (8) of the piston rod (6), and the first annular groove (9) is used to install a magnetic ring (10), and the magnetic ring (10) cooperates with an external magnetic switch. A second annular groove (11) is provided on the bottom wall surface of the piston (8), and a first buffer pad (12) is fixedly installed in the second annular groove (11), and the first buffer pad (12) and the rear cover (13) of the cylinder body (1) are buffered. The piston rod (6) is also provided with a second buffer pad (14) above the piston (8), and the second buffer pad (14) and the front cover (15) of the cylinder body (1) are buffered. The first slide groove (16) on the guide rail (2) and the second slide groove (17) on the slider (5) are both set as arc grooves, and the size of the arc groove is adapted to the size of the ball (18), and the bottom of the first slide groove (16) set as an arc groove is also provided with a rectangular groove (19).

2. A side rail type precision slide cylinder according to claim 1, characterized in that: The piston rod (6) and the piston (8) are configured as a split structure, and the rear end of the piston rod (6) is configured as a countersunk section (20). The countersunk section (20) is adapted to the axial through hole of the piston (8), and the countersunk hole at the bottom of the countersunk section (20) causes the end of the piston rod (6) to expand radially under the action of an external tool.

3. The side rail type precision slide cylinder according to claim 1, characterized in that: The front end of the piston rod (6) is provided with a threaded section (21), and two T-shaped nuts (22) facing each other are connected to the threaded section (21). The nuts (22) are provided on both sides of the fixing hole on the fixing block (7), and the vertical portion of the nut (22) is adapted to fit in the fixing hole.

4. The side rail type precision slide cylinder according to claim 3, characterized in that: The slide (3) is provided with a plurality of first mounting screw holes (23) on the front side of the mounting hole, so the fixing block (7) is provided with a plurality of second mounting screw holes (24), and the fixing block (7) is also provided with an avoidance groove (25) for matching the nut (22) on the outside.

5. The side rail type precision slide cylinder according to claim 1, characterized in that: A first axial vent hole (26) and a first radial vent hole (27) are provided at the lower portion of the cylinder body (1). The first axial vent hole (26) and the first radial vent hole (27) are both provided through and are used to match the first air hole of the cylinder body (1). The first axial vent hole (26) and the first radial vent hole (27) are both provided with corresponding first blocking members (28).

6. The side rail type precision slide cylinder according to claim 5, characterized in that: The upper portion of the cylinder body (1) is provided with a second axial vent hole (29) and a second radial vent hole (30) that are connected below the guide groove (4); the second axial vent hole (29) is provided on the rear surface of the cylinder body (1); the second radial vent hole (30) is provided through; the second axial vent hole (29) and the second radial vent hole (30) are used to cooperate with the second air hole of the cylinder; the second axial vent hole (29) and / or the second radial vent hole (30) are provided with the corresponding first blocking member (28).

7. The side rail type precision slide cylinder according to claim 1, characterized in that: A plurality of axial through slots (31) are formed on both the left and right side surfaces of the cylinder body (1), and the lower ends of the axial through slots (31) are in an arc-shaped structure for clamping the magnetic switch.

Images