Auxiliary clamping jig for multi-station flange machining

Abstract

The utility model provides a multi-station flange machining auxiliary clamping jig which comprises a base provided with a plurality of positioning cylinders used for installing flanges. The clamping unit comprises a driving assembly and a plurality of pressing plates, each positioning cylinder is provided with a plurality of mounting seats, each pressing plate is slidably arranged on the corresponding mounting seat, and the driving assembly is connected to each pressing plate and used for driving each pressing plate to be stored in the positioning cylinder or to be unfolded out of the positioning cylinder and pressed on a flange mounted on the positioning cylinder. Under the cooperation of the clamping unit, the action of each pressing plate can be synchronously controlled through the driving assembly, multi-station synchronous clamping or releasing is achieved, the clamping efficiency is improved, compared with the prior art, an air cylinder does not need to be independently arranged for each station, the number of pneumatic elements is remarkably reduced, the system structure is simplified, and the cost is reduced. Therefore, the equipment manufacturing and maintenance cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, and in particular to an auxiliary clamping fixture for multi-station flange processing. Background Technology

[0002] A flange is a mechanical connection component. Because it is easy to disassemble after connection, it is mainly used for connecting pipes, valves, and equipment inlets and outlets. To facilitate the processing of flanges, jigs are often needed to assist in clamping them and ensure processing accuracy.

[0003] For example, Chinese patent "CN222221820U" discloses a "fixture for drilling exhaust pipe connecting flanges". This fixture uses a radial positioning seat to limit the exhaust pipe connecting flange in the horizontal direction, and a support column and clamping clamps to limit the exhaust pipe connecting flange in the vertical direction. During processing, the exhaust pipe connecting flange is not easy to loosen, thereby improving the processing accuracy, and multiple stations can be processed simultaneously. Although the above fixture can realize multi-station processing, each station is equipped with a corresponding cylinder positioning device, which is costly. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-station flange processing auxiliary clamping fixture, which solves the problem of high cost of existing multi-station fixtures.

[0005] According to the embodiments of this utility model, the following technical solution is adopted:

[0006] A multi-station flange machining auxiliary clamping fixture includes:

[0007] The base is equipped with multiple positioning cylinders for mounting flanges;

[0008] The clamping unit includes a drive assembly and multiple pressing plates. Each positioning cylinder is provided with several mounting seats. Each pressing plate is slidably disposed on the corresponding mounting seat. The drive assembly is connected to each pressing plate and is used to drive each pressing plate to be housed inside the positioning cylinder, or to unfold out of the positioning cylinder and press against the flange installed on the positioning cylinder.

[0009] Preferably, the driving component includes:

[0010] Several tie rods are inserted into several positioning cylinders, and the ends of the tie rods are provided with connectors, which are rotatably connected to the corresponding pressing plates.

[0011] Connecting plate, which connects to each tie rod;

[0012] The driver is located on the base and connected to the connecting plate.

[0013] Preferably, the actuator is a cylinder.

[0014] Preferably, the bottom of the connecting plate is provided with a drive plate, the drive plate has an inclined drive groove, the telescopic end of the cylinder is provided with a drive seat, the drive seat is provided with a drive rod, and the drive rod is slidably disposed in the drive groove.

[0015] Preferably, each pressing plate has a groove at its end, and a buffer layer is provided in the groove.

[0016] Preferably, it also includes a positioning sleeve, which is fitted onto the positioning cylinder, and the positioning sleeve also has a positioning boss coaxially arranged therewith.

[0017] Preferably, the positioning boss has a guide slope.

[0018] Preferably, the base is provided with several mounting blocks, and the mounting blocks have several through holes for bolts to pass through.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this solution, multiple positioning cylinders can position a batch of flanges onto the base. With the cooperation of the clamping unit, the action of each pressing plate can be synchronously controlled by the drive component, realizing synchronous clamping or release of multiple stations, improving clamping efficiency. Compared with the existing technology, there is no need to equip each station with a separate cylinder, significantly reducing the number of pneumatic components, simplifying the system structure, and thus effectively reducing equipment manufacturing and maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of multiple flanges installed on the base in an embodiment of this utility model.

[0022] Figure 2 This is a cross-sectional structural diagram of the base in an embodiment of this utility model.

[0023] Figure 3 This is a cross-sectional structural diagram of the positioning cylinder and positioning sleeve in an embodiment of this utility model.

[0024] Figure 4 This is a schematic diagram of the batch processing of flanges in an embodiment of this utility model.

[0025] Figure 5 This is a schematic diagram of the transmission structure of the drive plate and drive seat in an embodiment of this utility model.

[0026] In the above attached figures: 1. Base; 2. Positioning cylinder; 201. Mounting seat; 3. Positioning sleeve; 301. Positioning boss; 302. Guide slope; 4. Pull rod; 401. Pressing plate; 402. Buffer layer; 403. Connector; 5. Connecting plate; 501. Drive plate; 502. Drive seat; 503. Drive groove; 504. Drive rod; 6. Cylinder; 7. Mounting block. Detailed Implementation

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0028] This utility model embodiment proposes an auxiliary clamping fixture for multi-station flange processing, comprising:

[0029] The base 1 is equipped with multiple positioning cylinders 2 for mounting flanges;

[0030] The clamping unit includes a drive assembly and multiple pressing plates 401. Each positioning cylinder 2 is provided with several mounting seats 201. Each pressing plate 401 is slidably disposed on the corresponding mounting seat 201. The drive assembly is connected to each pressing plate 401 and is used to drive each pressing plate 401 to be housed inside the positioning cylinder 2, or to unfold out of the positioning cylinder 2 and press against the flange installed on the positioning cylinder 2.

[0031] In the embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the base 1 has an inverted U-shaped structure, and multiple positioning cylinders 2 are fixedly installed on its top. The number of positioning cylinders 2 is determined according to the actual situation. The positioning cylinders 2 are arranged along the length of the base 1, and the size of the positioning cylinders 2 is smaller than the inner diameter of the flange, which facilitates quick installation.

[0032] Once flanges are installed on each positioning cylinder 2, the clamping unit can control the movement of each pressing plate 401 synchronously with only one drive component, allowing each pressing plate 401 to press or move away from the corresponding flange, thus achieving synchronous clamping or release at multiple stations and improving clamping efficiency. Compared with existing technologies, there is no need to equip each station with a separate cylinder, significantly reducing the number of pneumatic components, simplifying the system structure, and effectively reducing equipment manufacturing and maintenance costs.

[0033] For ease of understanding, such as Figure 3 As shown, the driving component includes:

[0034] A plurality of pull rods 4 are respectively inserted into a plurality of positioning cylinders 2, and the ends of the pull rods 4 are provided with connectors 403, which are rotatably connected to a plurality of corresponding pressing plates 401.

[0035] Connecting plate 5 is connected to each tie rod 4;

[0036] The driver is located on the base 1 and connected to the connecting plate 5.

[0037] The pressing plate 401 has a rectangular structure and a through groove with a certain length and width, allowing it to rotate or slide on the mounting base 201. One end of the pressing plate 401 is rotatably connected to the connector 403 of the pull rod 4. When the pull rod 4 rises, one end of the pressing plate 401 is lifted by the pull rod 4, causing the pressing plate 401 to slide on the mounting base 201 and the other end of the pressing plate 401 to rotate about the mounting base 201 until the other end of the pressing plate 401 presses against the flange. Similarly, when the pull rod 4 descends, the pressing plates 401 can be retracted into the positioning cylinder 2, releasing the pressing and fixing of the flange. The pressing plates 401 are evenly arranged in a circular array on the positioning cylinder 2 to ensure that the flange is subjected to uniform force. The connecting plate 5 connects to each pull rod 4. When the driver drives the connecting plate 5 to rise and fall, it can synchronously control each pull rod 4, and indirectly synchronously control each pressing plate 401. The driver can be a threaded drive structure, such as a lead screw, or an electric rod or a hydraulic rod. Preferably, for ease of control, the driver is a cylinder 6.

[0038] Specifically, in order to reduce the size of base 1, such as Figure 2 and Figure 5 As shown, the bottom of the connecting plate 5 is provided with a drive plate 501, the drive plate 501 has an inclined drive groove 503, the telescopic end of the cylinder 6 is provided with a drive seat 502, the drive seat 502 is provided with a drive rod 504, the drive rod 504 is slidably disposed in the drive groove 503; the drive plate 501 is fixedly connected to the connecting plate 5, and the cylinder 6 adopts a horizontal installation method, so that when the telescopic end of the cylinder 6 extends or retracts, it can drive the drive seat 502 to move laterally, so as to... Figure 2 For example, the drive groove 503 is opened with the left side higher than the right side. In the initial state, the drive rod 504 of the drive seat 502 is located on the left side of the drive groove 503. When the cylinder 6 contracts and drives the drive seat 502 to move to the right, the drive rod 504 of the drive seat 502 moves in the drive groove 503 and presses the inclined surface of the drive groove 503, thereby enabling the connecting plate 5 on the drive plate 501 to be adjusted up and down. Then, the pressing plate 401 is pressed or released by the pull rod 4.

[0039] Specifically, such as Figure 3 As shown, each pressing plate 401 has a groove at its end, and a buffer layer 402 is provided in the groove. The buffer layer 402 is made of hard rubber, and the hardness of the rubber is less than that of the pressing plate 401. Under the premise of not being easily deformed, the pressing plate 401 is prevented from causing damage to the flange.

[0040] Based on the above solutions, such as Figure 3 As shown, it also includes a positioning sleeve 3, which is fitted onto the positioning cylinder 2. The positioning sleeve 3 also has a positioning boss 301 coaxially arranged with it. The positioning boss 301 provides precise radial positioning of the flange. The positioning sleeve 3 can be directly fitted onto the positioning cylinder 2 or threadedly connected to it, allowing for easy removal and replacement. When the inner diameter or height of the flange being machined changes, a specific positioning sleeve 3 can be replaced. The inner diameter of the positioning boss 301 in the positioning sleeve 3 is the same as that of the flange, achieving precise positioning. Furthermore, the positioning boss 301 has a guide slope 302 for convenient flange installation.

[0041] Specifically, such as Figure 2 As shown, the base 1 is provided with several mounting blocks 7, and each mounting block 7 has several through holes for bolts to pass through. The mounting blocks 7 and their through holes facilitate fastening with bolts. The mounting location can be a tooling plate, which can be a plate structure or something similar. Figure 4 As shown, multiple flanges can be processed in one go by rotating them.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-station flange processing auxiliary clamping fixture, characterized in that, include: The base (1) is provided with multiple positioning cylinders (2) for mounting flanges; The clamping unit includes a drive assembly and multiple pressing plates (401). Each positioning cylinder (2) is provided with several mounting seats (201). Each pressing plate (401) is slidably disposed on the corresponding mounting seat (201). The drive assembly is connected to each pressing plate (401) and is used to drive each pressing plate (401) to be housed inside the positioning cylinder (2) or to unfold out of the positioning cylinder (2) and press against the flange installed on the positioning cylinder (2).

2. The multi-station flange processing auxiliary clamping fixture according to claim 1, characterized in that, The driving component includes: A plurality of pull rods (4) are respectively inserted into a plurality of positioning cylinders (2), and the ends of the pull rods (4) are provided with connectors (403), and the connectors (403) are rotatably connected to the corresponding plurality of pressing plates (401); The connecting plate (5) is connected to each of the aforementioned tie rods (4); The driver is located on the base (1) and connected to the connecting plate (5).

3. The multi-station flange processing auxiliary clamping fixture according to claim 2, characterized in that, The actuator is a cylinder (6).

4. The multi-station flange processing auxiliary clamping fixture according to claim 3, characterized in that, The bottom of the connecting plate (5) is provided with a drive plate (501), the drive plate (501) is provided with an inclined drive groove (503), the telescopic end of the cylinder (6) is provided with a drive seat (502), the drive seat (502) is provided with a drive rod (504), and the drive rod (504) is slidably provided in the drive groove (503).

5. The multi-station flange processing auxiliary clamping fixture according to claim 1, characterized in that, Each of the pressing plates (401) has a groove at its end, and a buffer layer (402) is provided in the groove.

6. The multi-station flange processing auxiliary clamping fixture according to claim 1, characterized in that, It also includes a positioning sleeve (3), which is sleeved on the positioning cylinder (2), and the positioning sleeve (3) also has a positioning boss (301) coaxially arranged therewith.

7. The multi-station flange processing auxiliary clamping fixture according to claim 6, characterized in that, The positioning boss (301) is provided with a guide slope (302).

8. The multi-station flange processing auxiliary clamping fixture according to claim 1, characterized in that, The base (1) is provided with several mounting blocks (7), and the mounting blocks (7) have several through holes for bolts to pass through.

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