C-shaped press

Abstract

The utility model discloses a C-shaped press machine which comprises a base, a positioning seat arranged on the upper surface of the base, an oil cylinder assembly arranged above the base and an oil pump assembly for supplying oil to the oil cylinder assembly, a telescopic piston column is arranged in the oil cylinder assembly, and the lower end of the piston column is connected with a top head. The connecting pipe comprises a long pipe and a short pipe; the lower end of the long pipe, the lower end of the short pipe and the lower end of the piston column are each provided with a connecting section with the reduced diameter, meanwhile, supporting steps are formed in the positions where the long pipe, the short pipe and the piston column are connected with the connecting sections, and the upper end of the long pipe and the upper end of the short pipe are each provided with a connecting hole allowing the connecting sections to be connected in an inserted mode. The supporting step abuts against the end wall of the upper end of the long pipe or the short pipe. The top head is clamped on the connecting section, and the upper end of the top head is supported on the supporting step. The number of standby connecting pipes can be reduced, cost can be reduced, and the connecting pipes can be conveniently stored.

Description

Technical Field

[0001] The utility model relates to the field of presses, in particular to a C-type press. Background Art

[0002] The main features of C-type presses are convenient loading and unloading, simple structure, simple operation, and wide application. C-type presses are mainly divided into pneumatic, hydraulic and mechanical transmission. The structure of a hydraulic press mainly includes a base, a cylinder assembly arranged on the base through a column, a top head arranged on the cylinder assembly, a positioning seat arranged on the base and located below the cylinder assembly, and an oil pump assembly that supplies oil to the cylinder assembly.

[0003] In order to enable the oil cylinder assembly to pressurize products of different heights, multiple pipes are prepared so that the piston rod in the oil cylinder assembly is connected to the head through the pipes to adapt to the corresponding height of the product. At present, multiple pipes are used independently of each other and cannot be spliced ​​and used in combination. Therefore, a large number of pipes need to be prepared for backup, which not only increases the cost, but also makes it difficult to store a large number of pipes. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a C-type press machine, which can reduce the number of spare pipes, thereby reducing costs and facilitating pipe storage.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A C-type press comprises a base, a positioning seat arranged on the upper surface of the base, a cylinder assembly arranged above the base, and an oil pump assembly for supplying oil to the cylinder assembly, wherein the cylinder assembly has a retractable piston column, the lower end of the piston column is connected to a head, and is characterized in that: a connecting pipe is also included, and the connecting pipe includes a long pipe and a short pipe;

[0007] The lower ends of the long tube, the short tube and the piston column all have connecting sections with reduced diameters, and support steps are formed at the positions where the long tube, the short tube and the piston column are connected to the connecting sections. The upper ends of the long tube and the short tube all have connecting holes for the connecting sections to be inserted into, and when the connecting sections are inserted into the connecting holes, the support steps press against the upper end wall of the connecting holes;

[0008] The plug is clamped on the connecting section, and the upper end of the plug is supported on the supporting step.

[0009] Preferably, the oil cylinder assembly further comprises a cylinder body and a return spring, the piston column is fitted in the cylinder body, the spring is arranged in the cylinder body, and both ends of the spring respectively abut between the cylinder body and the piston column to provide an upward thrust for the piston column.

[0010] Preferably, the outer side surface of the cylinder body has an external thread section, and the external thread section is matched with two upper and lower splicing nuts, a splicing slot is formed between the two splicing nuts, and the cylinder body is fixed to the column frame of the base through the splicing slot.

[0011] Preferably, an annular groove is provided on the outer side wall of the connecting section, and an elastic steel wire retaining ring is matched in the annular groove. When the connecting section is inserted into the connecting hole, the connecting section is clamped in the connecting hole by the elastic steel wire retaining ring.

[0012] Preferably, a storage groove for placing short tubes or long tubes is provided on the side wall of the base.

[0013] The advantages of the utility model are: the long tube and the short tube can be used in combination to adapt to the pressure of products of three heights. Compared with the traditional method of using three connecting tubes to pressurize products of three heights, the reserve of connecting tubes can be saved and the cost can be reduced. At the same time, the small reserve of connecting tubes can also be convenient for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a C-type press provided in this embodiment;

[0015] Figure 2 An exploded view of the C-type press provided in this embodiment. DETAILED DESCRIPTION

[0016] Combination Figure 1 to Figure 2 The C-type press of the utility model is further described.

[0017] A C-type press comprises a base 1, a positioning seat 7 arranged on the upper surface of the base 1, a cylinder assembly 5 arranged above the base 1, and an oil pump assembly 2 for supplying oil to the cylinder assembly 5. The cylinder assembly 5 has a retractable piston column, and the lower end of the piston column is connected to a head 4.

[0018] The base 1 includes two parallel channel steels 11 and a column frame 12 disposed between the two channel steels 11 and fixed to the two channel steels 11 by welding or bolting, and a mounting plate 13 is provided on the top of the column frame 12 .

[0019] The cylinder assembly 5 includes a cylinder body 51, a piston column and a reset spring. The piston column is fitted in the cylinder body 51, and the spring is arranged in the cylinder body 51, and the two ends of the spring are respectively abutted between the cylinder body 51 and the piston column, providing an upward thrust for the piston column, facilitating the automatic reset of the piston column, so that the piston column is contracted in the cylinder body 51 in a natural state.

[0020] The outer surface of the cylinder body 51 is provided with an external thread section 511, and the external thread section 511 is matched with two upper and lower splicing nuts 53, and a splicing slot is formed between the two splicing nuts 53. The cylinder body 51 is fixed to the mounting plate 13 of the base 1 through the splicing slot. That is, there is a mounting hole 131 on the mounting plate 13, and the cylinder body 51 is matched in the mounting hole 131 in an inverted state. The two splicing nuts 53 are threadedly matched on the external thread section 511 and are located at the upper and lower sides of the mounting plate 13. After tightening the two splicing nuts 53, the cylinder body 51 can be fixed to the mounting plate 13. Fixing the cylinder body 51 with two splicing nuts 53 can significantly improve the stability of the cylinder body 51 on the mounting plate 13; secondly, by adjusting the matching position of the splicing nuts 53 on the external thread section 511, the installation height of the cylinder body 51 can be finely and continuously adjusted, and the joint pipe 3 can adapt to the pressure of different product heights.

[0021] In order to facilitate the tightening and loosening of the splicing nut 53 , a positioning hole 531 is opened on the side wall of the splicing nut 53 , and the positioning hole 531 can be inserted with a tool, thereby facilitating the rotation of the splicing nut 53 .

[0022] This embodiment further includes a connecting pipe 3 , which includes a long pipe 31 and a short pipe 32 .

[0023] The lower ends of the long tube 31, the short tube 32 and the piston column all have a connecting section 6 with a reduced diameter, and a supporting step 34 is formed at the position where the long tube 31, the short tube 32 and the piston column are connected with the connecting section 6. The upper ends of the long tube 31 and the short tube 32 all have a connecting hole 33 for the connecting section 6 to be inserted and connected. When the connecting section 6 is inserted into the connecting hole 33, the supporting step 34 presses against the upper end wall of the long tube 31 or the short tube 32.

[0024] The upper end of the plug 4 also has a connecting hole 33 , and is engaged with the connecting section 6 through the connecting hole 33 , and the upper end of the plug 4 is supported on the supporting step 34 .

[0025] An annular groove is provided on the outer side wall of the connecting section 6 , and an elastic wire retaining ring 61 is fitted in the annular groove. When the connecting section 6 is inserted into the connecting hole 33 , the connecting section 6 is clamped in the connecting hole 33 by the elastic wire retaining ring 61 .

[0026] In the above structure, the piston column, the long tube 31, the short tube 32 and the top 4 can be selectively spliced ​​through the connecting hole 33 and the connecting section 6. After the selective splicing, it can adapt to the use of products of four heights, and the four heights are: the top 4 is directly matched on the piston column, the top 4 is matched on the piston column through the short tube 33, the top 4 is matched on the piston column through the long tube 31, and the top 4 is matched on the piston column through the long tube 31 and the short tube 32. Correspondingly, if a traditional press is used to process the four heights of products that can be processed by the utility model, three pipes 3 are required, namely the long tube 31, the short tube 32, and the tube body of the length formed by splicing the long tube 31 and the short tube 32. Therefore, compared with the pipes of the traditional press, the utility model can save the reserve of the longest pipe. The longest pipe 3 of this embodiment can be formed by splicing the long tube 31 and the short tube 32, which can save the pipe reserve and the corresponding cost.

[0027] Since the pipe 3 needs to withstand a large pressure during operation, the number of pipes 3 to be spliced ​​should not be too many, preferably two, otherwise it will affect the overall strength of the pipe 3 and be detrimental to the pressure on the product. In this embodiment, after the piston column, the short tube 32, the long tube 31 and the plug 4 are spliced ​​together, the support step 34 is used to achieve the force-bearing effect, that is, the top of the lower component can be supported on the support step 34 of the upper component, which can significantly improve the force stability of the pipe 3 and the plug 4.

[0028] A storage groove 14 for placing the short tube 32 or the long tube 31 is provided on the side wall of the base 1 to facilitate the storage of the long tube 31 or the short tube 32 .

[0029] Unless otherwise specified, in the present utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or position relationship in the present utility model are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0030] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A C-type press, comprising a base, a positioning seat arranged on the upper surface of the base, a cylinder assembly arranged above the base, and an oil pump assembly for supplying oil to the cylinder assembly, wherein the cylinder assembly has a retractable piston column, and the lower end of the piston column is connected to a head, wherein: Also included is a connecting pipe, which includes a long pipe and a short pipe; The lower ends of the long tube, the short tube and the piston column all have connecting sections with reduced diameters, and support steps are formed at the positions where the long tube, the short tube and the piston column are connected to the connecting sections. The upper ends of the long tube and the short tube all have connecting holes for the connecting sections to be inserted into, and when the connecting sections are inserted into the connecting holes, the support steps press against the upper end wall of the connecting holes; The plug is clamped on the connecting section, and the upper end of the plug is supported on the supporting step.

2. The C-type press according to claim 1, characterized in that: The oil cylinder assembly also includes a cylinder body and a return spring. The piston column is fitted in the cylinder body. The spring is arranged in the cylinder body. Two ends of the spring are respectively pressed between the cylinder body and the piston column to provide an upward thrust for the piston column.

3. The C-type press according to claim 2, characterized in that: The outer side surface of the cylinder body is provided with an external thread section, and the external thread section is matched with two upper and lower splicing nuts, and a splicing slot is formed between the two splicing nuts. The cylinder body is fixed to the column frame of the base through the splicing slot.

4. The C-type press according to claim 1 is characterized in that: An annular groove is provided on the outer side wall of the connecting section, and an elastic steel wire retaining ring is matched in the annular groove. When the connecting section is inserted into the connecting hole, the connecting section is clamped in the connecting hole through the elastic steel wire retaining ring.

5. The C-type press according to claim 1, characterized in that: A storage groove for placing short tubes or long tubes is arranged on the side wall of the base.

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