Novel structure single-action oil hydraulic cylinder pressing device of machining center clamp

Abstract

The utility model discloses a novel structure single-acting oil hydraulic cylinder pressing device of a machining center clamp, and particularly relates to the technical field of clamps, which comprises a single-acting oil hydraulic cylinder, the top of the single-acting oil hydraulic cylinder is in threaded connection with a connector; a first movable shaft is connected between the rear end of the pressing plate and the connector; a second movable shaft is connected between the two connecting plate pieces and the pressing plate; a third movable shaft is connected between the upper portion of the connecting plate seat and the two connecting plate pieces, and inner hexagon screws are embedded in the front portion and the rear portion of the connecting plate seat; the two ends of the first movable shaft, the two ends of the second movable shaft and the two ends of the third movable shaft are each sleeved with a split washer. A split type structure is adopted, the single-acting oil hydraulic cylinder and other pressing components are designed and machined separately, all the parts can be manufactured and assembled independently, the machining difficulty is lowered, when one part is damaged, only the damaged part needs to be replaced, and other components can be used all the time.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a new structure of single-acting hydraulic cylinder clamping device for machining center fixtures. Background Technology

[0002] An oil pump is a lightweight and compact pump, available in three main types: inline, distributor, and unit. An oil pump requires a power source to operate; its lower camshaft is driven by the engine crankshaft gear. Before machining the automotive oil pump cover, the cover needs to be installed in a fixture and secured with positioning supports.

[0003] Currently, in existing pump body cover manufacturing processes, fixed support pins are generally used as the main support, and three-point support hydraulic cylinders are used for clamping. Because pump body covers vary in shape and are mostly complex and irregular, during one-time processing, covers with inclined, curved, or uneven surfaces are prone to movement or deformation without the assistance of a single-acting lever hydraulic cylinder for clamping. However, when using a single-acting lever hydraulic cylinder-assisted clamping mechanism, if a part of the single-acting lever hydraulic cylinder is damaged, the entire clamping component must be scrapped and replaced. Furthermore, for different clamping height requirements, cylinder pads of varying heights need to be added to the single-acting lever hydraulic cylinder. Utility Model Content

[0004] The purpose of this invention is to provide a new structure for a single-acting hydraulic cylinder clamping device for machining center fixtures, in order to solve the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel single-acting hydraulic cylinder clamping device for machining center fixtures, comprising:

[0006] A single-acting hydraulic cylinder, wherein a connector is threadedly connected to the top of the single-acting hydraulic cylinder;

[0007] A pressure plate is located above a single-acting hydraulic cylinder, and a first movable shaft is connected between the rear end of the pressure plate and the connector.

[0008] Two connecting plates are symmetrically distributed on the front and rear sides of the pressure plate, and a second movable shaft connects the two connecting plates to the pressure plate.

[0009] A connecting plate seat, wherein the upper part of the connecting plate seat is connected to the two connecting plates by a third movable shaft, and both the front and rear parts of the connecting plate seat are nested with internal hexagon screws;

[0010] Each end of the first, second, and third movable shafts is fitted with an open retaining ring.

[0011] Preferably, the top of the output end of the single-acting hydraulic cylinder is provided with an internal thread groove, and the lower part of the connector is provided with a threaded head. The threaded head is nested in the internal thread groove, and the single-acting hydraulic cylinder and the connector are quickly disassembled and assembled through the threaded connection, which simplifies the assembly process and improves the structural stability.

[0012] Preferably, the outer ends of the first, second, and third movable shafts are provided with annular grooves, and the open retaining rings are fitted into the annular grooves. The design of the open retaining rings embedded in the annular grooves effectively prevents the movable shafts from moving axially, ensures the accuracy of the pressure plate's movement trajectory, and facilitates installation and disassembly.

[0013] Preferably, the right side of the pressure plate is provided with a receiving groove, the upper end of the connector is nested in the receiving groove, the first movable shaft passes through the upper end of the connector, and the front and rear ends of the first movable shaft pass through the front and rear side walls of the receiving groove, respectively.

[0014] Preferably, the lower part of the single-acting hydraulic cylinder is provided with an external threaded connection part, which facilitates the installation of the single-acting hydraulic cylinder on the fixture base plate.

[0015] Preferably, the pressure plate has a working surface, and the working surface is provided with a wear-resistant liner. The wear-resistant liner covers the working surface of the pressure plate, which significantly extends the service life of the pressure plate.

[0016] Preferably, a slot is provided on the working surface of the pressure plate, and a locking block is fixed on the wear-resistant pad at the position corresponding to the slot. The locking block is engaged in the slot, which makes the wear-resistant pad easy to install and easy to replace.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. This device adopts a split structure, which separates the single-acting hydraulic cylinder from other clamping components for design and processing. This allows each part to be manufactured and assembled independently, simplifying the processing difficulty. If one part is damaged, only the damaged part needs to be replaced, and the remaining parts can be used continuously.

[0019] 2. Compared with the integrated single-acting lever-type hydraulic cylinder, this device has a smaller overall size and a simpler design;

[0020] 3. For different clamping requirements, there is no need to add hydraulic cylinder gaskets; simply modify the connector and connecting plate seat. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This utility model Figure 1 Another perspective illustration;

[0024] Figure 3 This is a schematic diagram of the single-acting hydraulic cylinder of this utility model;

[0025] Figure 4 This is a schematic diagram of the connector of this utility model;

[0026] Figure 5 This is a schematic diagram of the pressure plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the wear-resistant gasket of this utility model;

[0028] Figure 7 This is a schematic diagram of the first movable axis of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Single-acting hydraulic cylinder; 2. Connector; 3. First movable shaft; 4. Second movable shaft; 5. Pressure plate; 6. Open retaining ring; 7. Connecting plate; 8. Socket head screw; 9. Connecting plate seat; 10. Third movable shaft; 11. Internal thread groove; 12. Annular groove; 13. Wear-resistant liner; 14. Slot; 15. Locking block; 16. Threaded head; 17. Receiving groove. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figures 1 to 5 and Figure 7 The novel single-acting hydraulic cylinder clamping device for machining center fixtures, as shown, includes:

[0033] A single-acting hydraulic cylinder 1 has a connector 2 threadedly connected to its top.

[0034] Pressure plate 5 is located above single-acting hydraulic cylinder 1, and a first movable shaft 3 is connected between the rear end of pressure plate 5 and connector 2.

[0035] Two connecting plates 7 are symmetrically distributed on the front and rear sides of the pressure plate 5, and a second movable shaft 4 connects the two connecting plates 7 to the pressure plate 5.

[0036] Connecting plate seat 9, the upper part of connecting plate seat 9 is connected to the two connecting plate parts 7 by a third movable shaft 10, and both the front and rear parts of connecting plate seat 9 are nested with internal hexagon screws 8.

[0037] Open retaining rings 6 are fitted at both ends of the first movable shaft 3, the second movable shaft 4, and the third movable shaft 10.

[0038] The top of the output end of the single-acting hydraulic cylinder 1 is provided with an internal thread groove 11, and the lower part of the connector 2 is provided with a threaded head 16. The threaded head 16 is nested in the internal thread groove 11. The single-acting hydraulic cylinder 1 and the connector 2 are quickly disassembled and assembled through the threaded connection, which simplifies the assembly process and improves the structural stability.

[0039] The outer ends of the first movable shaft 3, the second movable shaft 4, and the third movable shaft 10 are all provided with annular grooves 12. The open retaining ring 6 is fitted into the annular groove 12. The design of the open retaining ring 6 embedded in the annular groove 12 effectively prevents the movable shaft from moving axially, ensures the accuracy of the movement trajectory of the pressure plate 5, and facilitates installation and disassembly.

[0040] The right side of the pressure plate 5 is provided with a receiving groove 17. The upper end of the connector 2 is nested in the receiving groove 17. The first movable shaft 3 passes through the upper end of the connector 2, and the front and rear ends of the first movable shaft 3 pass through the front and rear side walls of the receiving groove 17 respectively.

[0041] The lower part of the single-acting hydraulic cylinder 1 is provided with an external threaded connection part, which facilitates the installation of the single-acting hydraulic cylinder 1 on the fixture base plate.

[0042] In this invention, the device is mounted on a fixture plate via an internal hexagon screw 8 and an external threaded connection at the lower part of the single-acting hydraulic cylinder 1. The pressure plate 5 achieves the pressing function by pushing the piston of the single-acting hydraulic cylinder 1 upward. The operation is simple and the overall structure is simple. The connector 2 is threadedly connected to the single-acting hydraulic cylinder 1, and the connector 2 is connected to the pressure plate 5 via a first movable shaft 3. The two connecting plates 7 are connected to the pressure plate 5 via a second movable shaft 4, and the connecting plate seat 9 is connected to the two connecting plates 7 via a third movable shaft 10. The device adopts a split structure, designing and processing the single-acting hydraulic cylinder 1 and other pressing components separately, so that each part can be manufactured and assembled independently, simplifying the processing difficulty. If one part is damaged, only the damaged part needs to be replaced, and the remaining parts can continue to be used. Compared with the integrated single-acting lever hydraulic cylinder, this device has a smaller overall size and a simpler design. At the same time, for pressing requirements of different heights, there is no need to add a cylinder pad; only the connector 2 and the connecting plate seat 9 need to be modified.

[0043] like Figure 1 , Figure 5 and Figure 6 As shown, the pressure plate 5 has a working surface, and a wear-resistant pad 13 is provided on the working surface.

[0044] A slot 14 is provided on the working surface of the pressure plate 5, and a block 15 is fixed on the wear-resistant pad 13 at the position corresponding to the slot 14. The block 15 is engaged in the slot 14.

[0045] In this utility model, the wear-resistant liner 13 covers the working surface of the pressure plate, which significantly extends the service life of the pressure plate 5. The locking block 15 on the wear-resistant liner 13 is locked into the locking groove 14 on the pressure plate 5, which makes the wear-resistant liner 13 easy to install and easy to replace.

[0046] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel single-acting hydraulic cylinder clamping device for machining center fixtures, characterized in that, include: A single-acting hydraulic cylinder (1) is provided with a connector (2) threaded to its top. Pressure plate (5), the pressure plate (5) is located above the single-acting hydraulic cylinder (1), and a first movable shaft (3) is connected between the rear end of the pressure plate (5) and the connector (2). Two connecting plates (7) are symmetrically distributed on the front and rear sides of the pressure plate (5), and a second movable shaft (4) is connected between the two connecting plates (7) and the pressure plate (5). Connecting plate seat (9), the upper part of the connecting plate seat (9) is connected to the two connecting plate parts (7) by a third movable shaft (10), and both the front and rear parts of the connecting plate seat (9) are nested with internal hexagon screws (8). Both ends of the first movable shaft (3), the second movable shaft (4) and the third movable shaft (10) are fitted with open retaining rings (6).

2. The single-acting hydraulic cylinder clamping device with a novel structure for machining center fixtures according to claim 1, characterized in that: The top of the output end of the single-acting hydraulic cylinder (1) is provided with an internal thread groove (11), and the lower part of the connector (2) is provided with a threaded head (16), which is nested in the internal thread groove (11).

3. The novel single-acting hydraulic cylinder clamping device for machining center fixtures according to claim 1, characterized in that: The first movable shaft (3), the second movable shaft (4) and the third movable shaft (10) are all provided with annular grooves (12) at both ends of the outer side, and the opening retaining ring (6) is sleeved in the annular groove (12).

4. The single-acting hydraulic cylinder clamping device with a novel structure for machining center fixtures according to claim 1, characterized in that: The right side of the pressure plate (5) is provided with a receiving groove (17), the upper end of the connector (2) is nested in the receiving groove (17), the first movable shaft (3) passes through the upper end of the connector (2), and the front and rear ends of the first movable shaft (3) pass through the front and rear side walls of the receiving groove (17) respectively.

5. A novel single-acting hydraulic cylinder clamping device for machining center fixtures according to claim 1, characterized in that: The lower part of the single-acting hydraulic cylinder (1) is provided with an external threaded connection.

6. The single-acting hydraulic cylinder clamping device with a novel structure for machining center fixtures according to claim 1, characterized in that: The pressure plate (5) has a working surface, and the working surface is provided with a wear-resistant pad (13).

7. A novel single-acting hydraulic cylinder clamping device for machining center fixtures according to claim 6, characterized in that: A slot (14) is provided on the working surface of the pressure plate (5), and a locking block (15) is fixed on the wear-resistant pad (13) at the position corresponding to the slot (14). The locking block (15) is engaged in the slot (14).

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