Powerful clamping cylinder with clamping and one-way pressure maintaining functions

Abstract

The utility model discloses a powerful clamping cylinder with clamping and one-way pressure maintaining functions, which particularly relates to the technical field of clamping cylinders and comprises a powerful clamping cylinder base, a cylinder barrel is arranged in the middle of the upper end of the powerful clamping cylinder base, a pilot-operated type one-way valve is arranged in an air channel at the bottom in the powerful clamping cylinder base, and an upper cylinder cover is arranged at the upper end of the cylinder barrel. A shell is arranged outside the upper end of the upper cylinder cover, an output shaft and a rack connecting piece are arranged in the shell, the output shaft is arranged on one side of the rack connecting piece and is in transmission connection with the rack connecting piece through a connecting plate, an oval hole is formed in the upper end of the rack connecting piece, and a rotary connecting piece is arranged at one end of the output shaft. The side, close to the rotary connecting piece, of the upper end of the rack connecting piece is machined to be an inclined face, and the side, close to the rotary connecting piece, of the upper end of the rack connecting piece is machined to be an inclined face. According to the utility model, the angle has the functions of stepless adjustment and compensation, the requirement of flexible design of customers is met, the clamping state can be still kept under the condition of pressure loss of a gas circuit, and the use safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping cylinders, and more specifically, to a strong clamping cylinder with a clamping and one-way pressure-maintaining function. Background Art

[0002] In a fixture, the device used to prevent the workpiece from displacement or vibration during machining is called a clamping device. The following requirements should be considered when designing a clamping device: Powerful clamping cylinders are widely used in areas requiring high-force clamping or fastening. Generally speaking, the application of powerful clamping cylinders is very broad, involving many industries that require strong clamping and fastening. Its stable performance and easy operation can meet the process requirements of different fields. Currently, this type of powerful clamping cylinder can be used to adjust the opening angle according to the needs of use. During adjustment, the clamping cylinder cannot maintain pressure after adjusting the angle. If the air circuit loses pressure, the piston rod will move in the opposite direction, which will affect the safety of the powerful clamping cylinder. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a strong clamping cylinder with a one-way clamping and pressure-maintaining function. The technical problem to be solved by the present invention is: how to maintain the clamping effect of the strong clamping cylinder after pressure loss.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a strong clamping cylinder with a clamping and one-way pressure-maintaining function, comprising: a strong clamping cylinder base, a cylinder barrel is provided in the middle of the upper end thereof, a pilot-operated one-way valve is provided in the air path at the bottom of the strong clamping cylinder base, an upper cylinder cover is provided at the upper end of the cylinder barrel, a shell is provided on the outer side of the upper end of the upper cylinder cover, an output shaft and a rack connecting member are provided inside the shell, the output shaft is provided on one side of the rack connecting member, and the output shaft and the rack connecting member are transmission-connected via a connecting plate;

[0005] An elliptical hole is provided at the upper end of the rack connector, a rotating connector is provided at one end of the output shaft, a connecting rod is provided at the outer end face of the connecting plate away from the rotating connector, and a side of the upper end of the rack connector close to the rotating connector is processed into an inclined surface so that there is space for adjustment of the clamping position, and it has the function of clamping plates of different thicknesses.

[0006] In a preferred embodiment, a mounting protrusion is provided at the lower end of the upper cylinder cover, and a sealing gasket is provided on the outer end face of the mounting protrusion. The outer end face of the sealing gasket fits with the inner end face of the cylinder barrel. The sealing gasket is a rubber component, which increases the sealing performance of the installation between the upper cylinder cover and the cylinder barrel.

[0007] In a preferred embodiment, a sealing connector is provided on the inner side of the cylinder at the upper end of the strong clamping cylinder base, and the outer end face of the sealing connector is in contact with the inner end face of the cylinder. The sealing connector is a rubber component, which increases the sealing performance of the installation between the strong clamping cylinder base and the cylinder.

[0008] In a preferred embodiment, the strong clamping cylinder base is connected to the upper cylinder cover via long-rod screws, and a sensor assembly is provided on one side of the outer end surface of the shell.

[0009] In a preferred embodiment, a piston rod is provided inside the cylinder barrel, and the piston rod passes through the mounting protrusion and the upper cylinder cover. The rack connecting member is provided at the top end of the piston rod and extends into the interior of the piston rod.

[0010] In a preferred embodiment, a mounting block is provided on the outer side of the piston rod, the mounting block is provided inside the shell, and a pressure tooth and a pressure block are provided inside the mounting block, the pressure tooth is slidingly connected to the mounting block, the pressure block is threadedly connected to the mounting block, and the pressure block is rotatably connected to the pressure tooth, the pressure tooth is engaged with the gear teeth on the outer wall of the rack connecting member, and the rack connecting member and the piston rod have different engagement lengths to achieve infinitely adjustable angles.

[0011] The technical effects and advantages of this utility model are:

[0012] Compared with the prior art, the utility model adds an elliptical hole and an inclined surface setting on the rack connecting piece, so that the thickness of the clamped workpiece can fluctuate within a larger range, and has the function of clamping plates of different thicknesses. That is, the powerful clamping cylinder has a compensation function, meeting the customer's flexible design requirements;

[0013] The utility model can adjust different engagement lengths between the rack connector and the piston rod, so as to facilitate adjustment of the clamping cylinder to a desired opening angle and realize infinitely adjustable angle.

[0014] The utility model integrates a pilot-operated one-way valve in the air circuit, so that the clamping cylinder can still maintain the clamping state when the air circuit loses pressure, thereby ensuring the safety of customers' use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the overall main cross-sectional structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the overall cross-section connection structure of the utility model.

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0019] The accompanying drawings are marked as follows: 1 strong clamping cylinder base, 2 cylinder barrel, 3 long rod screw, 4 housing, 5 output shaft, 6 upper cylinder cover, 7 sealing connector, 8 pilot one-way valve, 9 mounting protrusion, 10 sealing gasket, 11 locking piece, 12 rack connector, 13 connecting plate, 14 piston rod, 15 pressure block, 16 mounting block, 17 sensor assembly, 18 rotating connector, 19 connecting rod, 20 oval hole. DETAILED DESCRIPTION

[0020] The utility model provides a powerful clamping cylinder with a clamping and one-way pressure-maintaining function, such as Figure 1-3 As shown, it includes a strong clamping cylinder base 1, a cylinder barrel 2 is provided in the middle of its upper end, and a sealing connector 7 is provided on the inner side of the cylinder barrel 2 at the upper end of the strong clamping cylinder base 1. The outer end surface of the sealing connector 7 is in contact with the inner end surface of the cylinder barrel 2. The sealing connector 7 is a rubber material component, which can effectively increase the sealing performance of the installation of the strong clamping cylinder base 1 and the cylinder barrel 2;

[0021] An upper cylinder cover 6 is provided at the upper end of the cylinder barrel 2, and the strong clamping cylinder base 1 is connected to the upper cylinder cover 6 by a long rod screw 3. A shell 4 is provided on the outside of the upper end of the upper cylinder cover 6, and a sensor assembly 17 is provided on one side of the outer end surface of the shell 4. A mounting protrusion 9 is provided at the lower end of the upper cylinder cover 6, and a sealing gasket 10 is provided on the outer end surface of the mounting protrusion 9. The outer end surface of the sealing gasket 10 is fitted with the inner end surface of the cylinder barrel 2. The sealing gasket 10 is a rubber component, which can effectively increase the sealing performance of the installation of the upper cylinder cover 6 and the cylinder barrel 2.

[0022] like Figure 2 As shown, an output shaft 5 and a rack connector 12 are provided inside the housing 4. The output shaft 5 is provided on one side of the rack connector 12, and the output shaft 5 and the rack connector 12 are transmission-connected via a connecting plate 13. An elliptical hole 20 is provided at the upper end of the rack connector 12. A rotary connector 18 is provided at one end of the output shaft 5. A connecting rod 19 is provided on the outer end surface of the connecting plate 13 away from the rotary connector 18. The upper end of the rack connector 12 is processed into an inclined surface on the side close to the rotary connector 18.

[0023] Conventional cylinders have an oval hole 20 and a flat surface on one side of the upper end of the rack connector 12. Consequently, when the cylinder is in upward motion, there is only one clamping position, making it impossible to clamp plates of varying thicknesses. The present invention, however, incorporates an oval hole 20 and an inclined surface, creating an adjustable clamping position. This allows for a wide range of workpiece thickness variations, enabling the clamping of plates of varying thicknesses. This powerful clamping cylinder provides a compensating function, meeting customer design requirements for flexibility.

[0024] Then, if Figure 2 and 3 As shown, a piston rod 14 is provided inside the cylinder 2, and the piston rod 14 passes through the mounting protrusion 9 and the upper cylinder cover 6. The rack connecting member 12 is provided at the top of the piston rod 14 and extends into the interior of the piston rod 14. A mounting block 16 is sleeved on the outside of the piston rod 14. The mounting block 16 is provided inside the housing 4, and a pressing tooth 11 and a pressing block 15 are provided inside the mounting block 16. The pressing tooth 11 is slidably connected to the mounting block 16, and the pressing block 15 is threadedly connected to the mounting block 16. The pressing block 15 is rotatably connected to the pressing tooth 11, and the pressing tooth 11 is engaged with the gear teeth on the outer wall of the rack connecting member 12;

[0025] Different engagement lengths can be adjusted between the rack connector 12 and the piston rod 14. After the adjustment is completed, the pressure block 15 is twisted to drive the pressure tooth 11 to move, so that the pressure tooth 11 engages with the rack connector 12, making it easy to adjust the clamping cylinder to the desired opening angle and achieve infinitely adjustable angle.

[0026] Finally, if Figure 2 As shown, the utility model further provides a pilot-operated one-way valve 8 in the air circuit at the bottom of the strong clamping cylinder base 1, so that the clamping cylinder can still maintain the clamping state when the air circuit loses pressure, thereby ensuring the safety of customer use.

[0027] Finally, a few points should be explained: the drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A powerful clamping cylinder with one-way clamping and pressure-maintaining function, characterized in that: include: A strong clamping cylinder base (1) is provided with a cylinder barrel (2) in the middle of its upper end, a pilot-operated one-way valve (8) is provided in the air path at the bottom of the strong clamping cylinder base (1), an upper cylinder cover (6) is provided at the upper end of the cylinder barrel (2), a shell (4) is provided on the outside of the upper end of the upper cylinder cover (6), an output shaft (5) and a rack connecting member (12) are provided inside the shell (4), the output shaft (5) is provided on one side of the rack connecting member (12), and the output shaft (5) and the rack connecting member (12) are connected in transmission via a connecting plate (13); An elliptical hole (20) is provided at the upper end of the rack connecting member (12), a rotating connecting member (18) is provided at one end of the output shaft (5), a connecting rod (19) is provided at the outer end surface of the connecting plate (13) away from the rotating connecting member (18), and a side of the upper end of the rack connecting member (12) close to the rotating connecting member (18) is processed into an inclined surface.

2. A powerful clamping cylinder with a one-way clamping and pressure-maintaining function according to claim 1, characterized in that: The lower end of the upper cylinder cover (6) is provided with a mounting protrusion (9), and the outer end surface of the mounting protrusion (9) is provided with a sealing gasket (10). The outer end surface of the sealing gasket (10) is in contact with the inner end surface of the cylinder barrel (2), and the sealing gasket (10) is a rubber component.

3. A powerful clamping cylinder with a clamping and one-way pressure-maintaining function according to claim 2, characterized in that: The upper end of the strong clamping cylinder base (1) is provided with a sealing connector (7) on the inner side of the cylinder barrel (2), the outer end surface of the sealing connector (7) is in contact with the inner end surface of the cylinder barrel (2), and the sealing connector (7) is a rubber component.

4. The powerful clamping cylinder with one-way clamping and pressure-maintaining function according to claim 1, characterized in that: The strong clamping cylinder base (1) is connected to the upper cylinder cover (6) via a long-rod screw (3), and a sensor assembly (17) is provided on one side of the outer end surface of the shell (4).

5. The powerful clamping cylinder with one-way clamping and pressure-maintaining function according to claim 2, characterized in that: A piston rod (14) is provided inside the cylinder barrel (2), and the piston rod (14) passes through the mounting protrusion (9) and the upper cylinder cover (6). The rack connecting member (12) is provided at the top end of the piston rod (14) and extends into the interior of the piston rod (14).

6. A powerful clamping cylinder with a one-way clamping and pressure-maintaining function according to claim 5, characterized in that: The outer side of the piston rod (14) is provided with a mounting block (16), the mounting block (16) is provided inside the housing (4), and a pressure tooth (11) and a pressure block (15) are provided inside the mounting block (16), the pressure tooth (11) is slidably connected to the mounting block (16), the pressure block (15) is threadedly connected to the mounting block (16), and the pressure block (15) is rotatably connected to the pressure tooth (11), and the pressure tooth (11) is engaged with the gear teeth on the outer wall of the rack connecting member (12).

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