Clamping device for processing filter

Abstract

The utility model relates to the technical field of filter processing, and discloses a clamping device for processing a filter, which comprises a bottom plate, a fixed bracket and a movable bracket which are opposite to each other are arranged on the bottom plate, the movable bracket can be close to or far away from the fixed bracket, and the clamping device further comprises a first clamping piece, first clamping pieces are arranged on the fixed bracket and the movable bracket, and the first clamping pieces are used for clamping an outer barrel of the filter; the positioning assembly is arranged on the bottom plate and located on one side of the fixed bracket and one side of the movable bracket, the positioning assembly comprises two penetrating rods, and the two penetrating rods are used for penetrating through holes in a filter bypass pipe flange; through the arrangement of the positioning assembly, the penetrating rod in the positioning assembly can penetrate through the hole in the filter bypass pipe flange, so that the bypass pipe can be prevented from rotating; a second double-thread lead screw of the positioning assembly can adjust the distance between the two penetrating rods so as to cope with the distance between opposite holes in different flanges.

Description

Technical Field

[0001] The utility model relates to the technical field of filter processing, in particular to a clamping device for processing filters. Background Art

[0002] In the welding process of the cartridge filter, precise size and position accuracy are the key to ensuring the subsequent smooth assembly and normal use of the filter. Therefore, it is particularly necessary to clamp the filter with the help of a fixture.

[0003] In the current welding process of cartridge filters, the main operation method is to weld the side pipe to the outside of the main cylinder of the filter. Before the welding work is officially carried out, the relevant parts are usually fixed with the help of a two-way or three-way clamping structure on the welding table. For the main cylinder with larger size, the traditional two-way or three-way clamping structure can still achieve a relatively effective limitation to a certain extent. However, in the actual welding operation, due to its relatively small structural characteristics, the side pipe is more likely to shift when accidentally touched by the outside world than the main cylinder. Once the side pipe shifts during the welding process, the key parameters such as the position and angle of the weld will deviate from the original design requirements, which will seriously affect the welding quality. If a more complex and firm clamping structure is provided, it is easy to cause certain obstructions to the welding point. Utility Model Content

[0004] The utility model provides a clamping device for processing a filter, so as to solve the problem that a side pipe is easily displaced after being accidentally hit during the existing welding.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping device for processing a filter, comprising a bottom plate, on which a fixed bracket and a movable bracket are arranged opposite to each other, and the movable bracket can be close to or away from the fixed bracket, and also comprises:

[0006] A first clamping member, both the fixed bracket and the movable bracket are provided with the first clamping member, and the first clamping member is used to clamp the outer cylinder of the filter;

[0007] A positioning assembly is arranged on the bottom plate and is located on one side of the fixed bracket and the movable bracket. The positioning assembly includes two penetration rods, and the two penetration rods are used to penetrate the holes on the flange of the filter side pipe;

[0008] The second clamping member is connected to the fixed bracket and is used for auxiliary clamping of the bypass pipe after the through rod passes through the hole on the bypass pipe flange.

[0009] Preferably, the positioning assembly further comprises a rotatable second double-threaded screw, and a corresponding through rod is mounted on the outside of the second double-threaded screw via two nut seats.

[0010] Preferably, a vertical support plate is provided on the upper end surface of the base plate, a sticking plate is fixed on the top of the support plate, a through groove is formed on the sticking plate, guide grooves are formed at the upper and lower ends of the through groove, and a convex ring that can move along the guide groove is fixed on the outside of the through rod.

[0011] Preferably, the first clamping member comprises a threaded rod, a pressure seat is mounted on the bottom end of the threaded rod via a bearing, and a retractable movable pressure rod is provided on the lower end surface of the pressure seat.

[0012] Preferably, the movable pressure rod increases successively from the middle to both sides of the pressure seat, and a downward pressing slope is provided at the bottom end of the movable pressure rod, and the inclination of the downward pressing slope increases successively from the movable pressure rod in the middle of the pressure seat to the movable pressure rods on both sides.

[0013] Preferably, a groove is formed on the lower end surface of the pressure seat, and a spring is connected between the top of the groove and the top end of the movable pressure rod.

[0014] Preferably, the second clamping member comprises a vertical first double-threaded lead screw, and two opposite arc-shaped clamping rings are mounted on the outside of the first double-threaded lead screw via two nut seats.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] (1) Through the setting of the positioning assembly, the penetration rod in the positioning assembly can pass through the hole on the flange of the filter bypass pipe, thereby preventing the bypass pipe from rotating; and the second double-threaded screw of the positioning assembly can adjust the distance between the two penetration rods to cope with the distance between the relative holes on different flanges;

[0017] (2) The movable pressure rod of the first clamping member increases from the middle to both sides of the pressure seat, and the downward pressure slope at the bottom increases from the middle to both sides, which can make the movable pressure rod fit more closely to the outer wall of the main cylinder body, increase the total contact area with the outer wall of the main cylinder body, distribute the pressure more evenly, reduce local pressure concentration, and improve the stability of the main cylinder body when it is pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the combined state of the board attachment and positioning components;

[0021] Figure 3 This is a schematic diagram of the split state of the board attachment and positioning components;

[0022] Figure 4 is a front view of the first clamping member;

[0023] Figure 5 is a cross-sectional view of the first clamping member;

[0024] In the figure: 1, base plate; 2, fixed bracket; 3, movable bracket; 4, first clamping member; 41, threaded rod; 42, pressure seat; 43, movable pressure rod; 431, downward pressing slope; 44, groove; 45, spring; 5, first double-threaded screw; 6, arc clamp ring; 7, support plate; 8, sticking plate; 9, positioning assembly; 91, second double-threaded screw; 92, through rod; 93, convex ring; 94, through groove; 95, guide groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 5 As shown, a clamping device for processing a filter comprises a base plate 1, on which a relative fixed bracket 2 and a movable bracket 3 are provided, the movable bracket 3 can be close to or away from the fixed bracket 2, a mounting groove is provided on the base plate 1, a lead screw is provided in the groove, the movable bracket 3 is installed on a nut seat outside the lead screw to realize the movement of the movable bracket 3 to adjust the main cylinder body of different lengths, and also comprises a first clamping member 4, a positioning assembly 9 and a second clamping member, both the fixed bracket 2 and the movable bracket 3 are provided with the first clamping member 4, and the first clamping member 4 is used to clamp the outer cylinder body of the filter; the positioning assembly 9 is arranged on the base plate 1 and is located on one side of the fixed bracket 2 and the movable bracket 3, and the positioning assembly 9 includes two through rods 92.

[0027] See also Figure 1 As shown, the second clamping member includes a vertical first double-threaded screw 5, and two opposite arc-shaped clamping rings 6 are installed on the outside of the first double-threaded screw 5 through two nut seats, and two through rods 92 are used to pass through the holes on the filter bypass pipe flange; the second clamping member is connected to the fixed bracket 2, and the second clamping member is used to assist in clamping the bypass pipe after the through rods 92 pass through the holes on the bypass pipe flange.

[0028] Among them, see Figure 2 and Figure 3As shown, the positioning assembly 9 also includes a rotatable second double-threaded screw 91, and the corresponding through rods 92 are installed on the outside of the second double-threaded screw 91 through two nut seats. The second double-threaded screw 91 is used to adjust the distance between the two through rods 92 to cope with the distance between relative holes on different flanges.

[0029] See also Figure 3 As shown, a vertical support plate 7 is provided on the upper end surface of the base plate 1, a pasting plate 8 is fixed to the top of the support plate 7, a through groove 94 is provided on the pasting plate 8, a guide groove 95 is provided at the upper and lower ends of the through groove 94, a convex ring 93 which can move along the guide groove 95 is fixed to the outside of the through rod 92, the pasting plate 8 is used to abut against the end of the flange, and the movement of the convex ring 93 along the guide groove 95 can improve the stability of the movement of the through rod 92, and the support plate 7 can also be moved by a screw to adjust its flange close to the side pipe.

[0030] Through the above, in actual use, the main cylinder of the filter is first placed on the fixed bracket 2 and the movable bracket 3, and then fixed by the first clamping member 4, and then the side pipe to be welded is placed in place, and the through rod 92 is passed through the hole on the side pipe flange. After the two through rods 92 pass through the holes on the flange, the side pipe can be prevented from rotating, and then the side pipe is further clamped by two opposite arc clamping rings 6, and then welding can be carried out.

[0031] The arc-shaped clamp ring 6 is close to one end of the bypass pipe flange to reduce obstruction to the welding position.

[0032] See also Figure 4 and Figure 5 As shown, the first clamping member 4 includes a threaded rod 41, which passes through the corresponding fixed bracket 2 or movable bracket 3 from the upper end, and the bottom end of the threaded rod 41 is installed with a pressure seat 42 through a bearing, and the lower end surface of the pressure seat 42 is provided with a retractable movable pressure rod 43, wherein a groove 44 is opened on the lower end surface of the pressure seat 42, and a spring 45 is connected between the top of the groove 44 and the top of the movable pressure rod 43.

[0033] The movable pressing rod 43 increases from the middle to both sides of the pressing seat 42, and a downward pressing slope 431 is provided at the bottom end of the movable pressing rod 43. The inclination of the downward pressing slope 431 increases from the movable pressing rod 43 in the middle of the pressing seat 42 to the movable pressing rod 43 on both sides.

[0034] As mentioned above, when the first clamping member 4 is used to press the main cylinder body, the threaded rod 41 can be rotated to move the pressure seat 42 downward, and then the movable pressure rod 43 can be used to press the outer wall of the main cylinder body. Since the main cylinder body is a cylindrical structure, in order to adapt to this appearance feature, in terms of design, the downward extension length of the movable pressure rod 43 closer to the outside is deliberately set to be longer. This is because the outer wall of the cylinder is arc-shaped, and the farther it is to the outside, the larger the span of the arc in the vertical direction. The longer the downward extension length can ensure that the movable pressure rod 43 effectively contacts the outer wall of the main cylinder body.

[0035] At the same time, a downward pressing slope 431 is provided with a greater inclination as it approaches the outer side. The inclined design of the downward pressing slope 431 enables the movable pressure rod 43 to apply pressure at a closer angle when contacting the outer wall of the main cylinder body. When the pressure seat 42 drives the movable pressure rod 43 downward, the inclined downward pressing slope 431 forms a larger contact area with the outer wall of the main cylinder body. Numerous movable pressure rods 43 act together from different positions, which greatly increases the total contact area with the outer wall of the main cylinder body. The larger contact area means that the pressure can be more evenly distributed on the outer wall of the main cylinder body, reducing the situation of local pressure concentration, thereby significantly improving the stability of the main cylinder body in the compressed state, and ensuring the accuracy and stability of the position of the main cylinder body during subsequent processing or use.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device for processing a filter, comprising a base plate (1), wherein the base plate (1) is provided with a fixed bracket (2) and a movable bracket (3) opposite to each other, characterized in that: The movable bracket (3) can be close to or away from the fixed bracket (2), and further comprises: A first clamping member (4), wherein the fixed bracket (2) and the movable bracket (3) are both provided with the first clamping member (4), and the first clamping member (4) is used to clamp the outer cylinder of the filter; A positioning assembly (9) is arranged on the bottom plate (1) and is located on one side of the fixed bracket (2) and the movable bracket (3), the positioning assembly (9) comprising two penetration rods (92), the two penetration rods (92) being used to penetrate holes on the flange of the filter side pipe; The second clamping member is connected to the fixed bracket (2), and is used to assist in clamping the bypass pipe after the penetration rod (92) passes through the hole on the bypass pipe flange.

2. A clamping device for processing a filter according to claim 1, characterized in that: The positioning assembly (9) further comprises a rotatable second double-threaded lead screw (91), the exterior of the second double-threaded lead screw (91) being provided with a corresponding through rod (92) via two nut seats.

3. A clamping device for processing a filter according to claim 2, characterized in that: A vertical support plate (7) is provided on the upper end surface of the bottom plate (1), a sticking plate (8) is fixed to the top end of the support plate (7), a through groove (94) is provided on the sticking plate (8), guide grooves (95) are provided at the upper and lower ends of the through groove (94), and a convex ring (93) that can move along the guide groove (95) is fixed to the outside of the through rod (92).

4. A clamping device for processing a filter according to claim 1, characterized in that: The first clamping member (4) comprises a threaded rod (41), a pressure seat (42) being mounted on the bottom end of the threaded rod (41) via a bearing, and a retractable movable pressure rod (43) being provided on the lower end surface of the pressure seat (42).

5. A clamping device for processing a filter according to claim 4, characterized in that: The movable pressure rod (43) increases in size from the middle to both sides of the pressure seat (42), and a downward pressing inclined surface (431) is provided at the bottom end of the movable pressure rod (43), and the inclination of the downward pressing inclined surface (431) increases in size from the movable pressure rod (43) in the middle of the pressure seat (42) to the movable pressure rods (43) on both sides.

6. A clamping device for processing a filter according to claim 4, characterized in that: The lower end surface of the pressure seat (42) is provided with a groove (44), and a spring (45) is connected between the top of the groove (44) and the top end of the movable pressure rod (43).

7. A clamping device for processing a filter according to claim 1, characterized in that: The second clamping member comprises a vertical first double-threaded screw (5), and two opposing arc-shaped clamping rings (6) are mounted on the outside of the first double-threaded screw (5) via two nut seats.

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