Tube plate partition plate groove machining tool suitable for small milling machine

Abstract

The utility model discloses a tube plate partition plate groove machining tool suitable for a small milling machine. The tool is mainly composed of a main frame, a connecting plate, a clamping plate, a positioning sliding block, a positioning pin shaft, a fixing sliding block and a fixing bolt. Connecting plates are symmetrically and fixedly connected to the outer part of the main frame; a clamping plate is arranged in the main frame; guide grooves in the 0-degree direction and the 45-degree direction are formed in the clamping plate, and positioning sliding blocks and fixed sliding blocks are assembled in the guide grooves in the 0-degree direction and the 45-degree direction in a sliding mode; the positioning pin shaft is connected with the positioning sliding block after being matched and positioned with a pipe hole in the pipe plate, and the fixing sliding block is connected with the fixing bolt. According to the utility model, the clamping process can be simplified by utilizing the tube holes of the tube plate, so that rapid clamping and steering are realized, the clamping efficiency and quality are improved, the labor intensity is reduced, meanwhile, the operation range of a milling machine is effectively expanded, a larger size range can be covered, and the cost is effectively saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of petrochemical equipment manufacturing, in particular to a tube plate baffle groove machining tool suitable for small milling machine. BACKGROUND

[0002] A petrochemical equipment manufacturing company needs to use a milling machine to process a tube plate baffle groove in the manufacturing process of a shell-and-tube heat exchanger. The company currently only has a small milling machine, and when processing, manual tube plate alignment, clamping, scribing and other steps are required, which is complicated, time-consuming and labor-intensive, affects processing efficiency, and processing errors are difficult to avoid. In addition, due to the limited width of the workbench, it is not possible to clamp a tube plate with a large diameter, which limits the processing capacity of the milling machine and causes equipment capacity waste. SUMMARY

[0003] The utility model provides a tube plate baffle groove machining tool suitable for small milling machine, which can simplify the clamping process by using the tube plate hole to achieve rapid clamping and turning, improve clamping efficiency and quality, reduce labor intensity, effectively expand the operating range of the milling machine, cover a larger size range, and effectively save costs.

[0004] The utility model adopts the technical scheme that:

[0005] A tube plate baffle groove machining tool suitable for small milling machine, which mainly comprises a main frame, a connecting plate, a clamping plate, a positioning sliding block, a positioning pin shaft, a fixed sliding block and a fixed bolt; the connecting plate is symmetrically and fixedly connected to the outside of the main frame; the clamping plate is arranged in the main frame; the clamping plate is provided with guide grooves in 0° and 45° directions, and the guide grooves in the 0° and 45° directions are slidably connected with the positioning sliding block and the fixed sliding block; the positioning pin shaft is connected with the positioning sliding block after being positioned with the hole of the tube plate; and the fixed sliding block is connected with the fixed bolt.

[0006] The main frame is composed of a groove steel.

[0007] The upper surface of the clamping plate is higher than the main frame.

[0008] The upper section of the positioning pin shaft is matched with the inner hole of the positioning sliding block, and the lower section is matched and assembled with the hole of the tube plate.

[0009] A through sliding groove is arranged at one long side and two short sides of the main frame.

[0010] The utility model has the advantages of:

[0011] 1. The clamping method of the tube plate is simplified from the original manual repeated measurement, adjustment and positioning and then fixing to selecting a suitable tube plate hole for positioning and then fixing, which effectively simplifies the tube plate clamping steps and fully utilizes the machining accuracy of the hole to improve the clamping quality;

[0012] 2. The utility model discloses through the 0 and 45 degree direction guide slot of carding plate, can quickly complete the conversion of pipe plate by 0 degree direction to 45 degree direction, realized the quick preparation of machining operation, reduced the labor intensity of carding;

[0013] 3. The utility model discloses the processing capacity of small -size milling machine is expanded, makes it cover the size range of commonly used pipe plate, effectively saved production cost. DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the schematic diagram of the utility model in 0 degree direction processing pipe plate baffle groove;

[0016] Figure 3 It is the schematic diagram of the utility model in 45 degree direction processing pipe plate baffle groove chamfering;

[0017] Figure 4 It is the local enlarged view of the utility model carding operation;

[0018] Drawing reference: 1. main frame 2. connecting plate 3. carding plate 4. positioning slide 5. positioning pin shaft 6. fixed slide 7. fixed bolt. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model will be described in detail below in combination with the drawings:

[0020] As Figure 1The utility model discloses a kind of tube plate baffle groove processing frock suitable for small milling machine, which is mainly composed of main frame 1, connecting plate 2, clamping plate 3, positioning slider 4, positioning pin shaft 5, fixed slider 6;Connecting plate 2 is symmetrically welded outside main frame 1, to firmly fix frock on milling machine workbench;Clamping plate 3 is installed in main frame 1, to clamp tube plate;0° and 45° direction guide groove are opened on the clamping plate 3, and positioning slider 4 and fixed slider 6 are slidably assembled in the 0° and 45° direction guide groove to position the angle of tube plate clamping.0° direction guide groove is used to clamp when processing baffle groove body of tube plate.45° direction guide groove is used to clamp when processing baffle groove chamfer of tube plate.5 and the pipe hole on tube plate are positioned after being matched, and 4 are connected, and 6 are connected with fixed bolt 7.4 and 6 are assembled, and the height is less than the height of 1, and upper end surface is slightly lower than the upper end surface of 3, and lower end surface is slightly higher than the lower end surface of 1, and can slide in guide groove.4 is equipped with annular notch matched with guide groove, and through hole is axially opened.5 is matched with the pipe hole of tube plate on upper segment, and lower segment is matched with 4, and the diameter of upper segment can be adjusted according to the specification of the pipe hole of tube plate positioned.6 is also equipped with annular notch matched with guide groove, and bolt hole is axially machined.7 is hexagonal head bolt matched with fixed slider.4 and 6 are assembled in guide groove, and 5 and 7 are positioned and fixed to tube plate through several pipe holes in the pipe hole parallel to baffle groove on tube plate.

[0021] 1 is formed by groove steel butt welding. It can effectively reduce the weight of frame itself, and is beneficial to reduce the load of milling machine base.

[0022] The upper surface of 3 is higher than 1 by a certain distance and is leveled after processing, which can ensure the levelness of the processing surface of tube plate after clamping, and is beneficial to processing precision and stability.

[0023] The diameter of upper segment of 5 is matched with the inner hole of 4, and the diameter of lower segment is matched with the pipe hole of tube plate, which can be replaced according to different pipe hole sizes.

[0024] One long side and two short sides of 1 are provided with through-type slide groove, which can be further fixed tube plate by cooperating with fixture if necessary.

[0025] As Figure 2As shown, when the tube plate is machined in the 0° direction, the positioning slider 4 and the fixing slider 6 are respectively placed in the 0° guide groove, and then the tube plate is placed on the clamping plate 3. A row of tube holes with appropriate distance from the partition groove is selected to coincide with the guide groove, two tube holes in the row of tube holes that meet the positioning requirements are selected, the axis of the positioning slider 4 is adjusted to be collinear with the center line of the tube hole, the positioning pin shaft 5 is inserted to complete the positioning. Two tube holes in the row of tube holes that meet the fixing requirements are selected, the position of the fixing slider 6 is adjusted to make the axis collinear with the center line of the tube hole, the fixing bolt 7 is screwed in to fasten, and the clamping is completed. The milling machine is started to process the main body of the partition groove.

[0026] As shown, Figure 3 When the tube plate is machined in the 45° direction, the positioning slider 4 and the fixing slider 6 are placed in the 45° guide groove, the tube plate machined in the 0° direction is removed after positioning and fixing, and then rotated by 45°, the positioning tube hole is coincided with the 45° guide groove, the positions of the positioning slider 4 and the fixing slider 6 are adjusted, the positioning pin shaft 5 is inserted, and the fixing bolt 7 is screwed in to complete the clamping, and then the milling machine is started to process the chamfer of the partition groove.

Claims

1. A tube sheet baffle groove processing tooling suitable for a small milling machine, characterized by, The tool mainly consists of a main frame (1), a connecting plate (2), a clamping plate (3), a positioning sliding block (4), a positioning pin shaft (5), a fixing sliding block (6), and a fixing bolt (7); the main frame (1) is externally symmetrically fixed with the connecting plate (2); the main frame (1) is internally provided with the clamping plate (3); the clamping plate (3) is provided with guiding grooves in 0° and 45° directions, the guiding grooves in the 0° and 45° directions are both slidably assembled with the positioning sliding block (4) and the fixing sliding block (6); the positioning pin shaft (5) is connected with the positioning sliding block (4) after being adaptively positioned with the pipe hole of the tube plate; and the fixing sliding block (6) is connected with the fixing bolt (7).

2. The tube sheet baffle groove machining tooling for small milling machines of claim 1, wherein, The main frame (1) is composed of a channel steel.

3. The tube sheet baffle groove machining tooling for small milling machines of claim 1, wherein, The upper surface of the clamping plate (3) is higher than the main frame (1).

4. The tube sheet baffle groove machining tooling for small milling machines of claim 1, wherein, The upper section of the positioning pin shaft (5) is matched with the inner hole of the positioning sliding block (4), and the lower section is matched with the pipe hole of the tube plate for assembly.

5. The tube sheet baffle groove machining tooling for small milling machines of claim 1, wherein, A through sliding groove is arranged at each of a long side and two short sides of the output main frame (1).

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