Adjustable clamp for flange machining

Abstract

The utility model discloses an adjustable fixture for flange processing, which relates to the technical field of flange processing and comprises a fixture base, and two fixing plates are fixedly mounted at the top of the fixture base. According to the flange clamping device, when a second rotary knob is rotated, two arc-shaped clamping plates can be driven by controlling a rotating rod, a first bevel gear, a second bevel gear, a two-way lead screw, a rectangular sliding rod, a movable arm and a hexagonal sliding rod to move face to face or back to back at the same time, flanges with different diameters are clamped, fixed or loosened, and when a fixing plug pin is pulled upwards to move out of a fixing hole, the two arc-shaped clamping plates can be clamped and fixed. When the flange is turned over, the first knob can be loosened, at the moment, the first knob can be rotated to drive the two arc-shaped clamping plates to rotate together through the horizontal rotating rod, the first chain wheel, the transmission chain, the second chain wheel, the rotating cylinder and the hexagonal sliding rod, the flange can be directly turned over, the flange does not need to be loosened and clamped and fixed again, operation is easy and convenient, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange processing technical field, especially a kind of adjustable fixture for flange processing. BACKGROUND

[0002] Flange is a kind of part for connecting pipeline, equipment or other components, usually disc-shaped, with eyelet on periphery to facilitate bolt connection, according to connection mode flange connection category can be divided into: plate type flat welding flange, with neck flat welding flange, with neck butt welding flange, socket welding flange, threaded flange etc.;In the process of processing flange, usually need to use clamp to clamp and fix flange.

[0003] Prior art patent with publication number CN220112753U discloses a kind of adjustable fixture for flange processing, it is by rotating ball rotating sleeve and is connected on fixed circular plate, so that the flange clamped by two placement long plate can be rotated in any direction on the end of fixed circular plate, to facilitate user to process flange at different angles, but, when processing the other side of flange after processing one side of flange in the process of using, need staff to loosen flange first, then overturn flange and re-clamp and fix, it is inconvenient to use, for this purpose, the utility model discloses a kind of adjustable fixture for flange processing to meet people's demand. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of adjustable fixture for flange processing, to solve the above background art to propose its need to loosen flange first, then overturn and re-fix after, to continue to process the other side of flange, it is inconvenient to use the problem of.

[0005] To achieve the above object, the utility model provides the following technical scheme: A flange processing is with adjustable clamp, including clamp base, the top of clamp base is fixedly installed with two fixed plates, the side of two fixed plates is equipped with first rotation hole and second rotation hole, two first rotation hole all rotatably installs rotation cylinder, two rotation cylinder all slip sleeve has hexagonal slide rod, two hexagonal slide rods are installed with arc clamping plate in the end of mutual approach, the inner arc surface of two arc clamping plates is equipped with flange slot, two second rotation hole all rotatably installs horizontal rotation lever, horizontal rotation lever is connected with chain wheel drive unit for making two rotation cylinder synchronous rotation, the end of two hexagonal slide rods is rotatably connected with mobile arm, the clamp base is installed with the clamping control assembly for controlling two mobile arms to move simultaneously towards or simultaneously away, the horizontal rotation lever is fixedly sleeved with two first knobs, two first knobs all are installed with fixed unit, the fixed unit includes the fixed lug of fixed installation on the side of fixed plate, the top of fixed lug is equipped with sliding hole, the sliding hole is slidably installed with fixed pin, the circumferential side of first knob is evenly equipped with a plurality of fixed holes, and the bottom of fixed pin extends to one of fixed holes.

[0006] Preferably, the chain wheel drive unit includes two first chain wheels fixedly sleeved on the horizontal rotation lever, and a second chain wheel fixedly sleeved on each of the two rotation cylinders.

[0007] Preferably, the clamping control assembly includes a bidirectional screw rod, a cavity is formed in the clamp base, rectangular slide holes are formed in the inner walls of the two sides of the cavity away from each other, rectangular slide rods are slidably installed in the two rectangular slide holes, the two mobile arms are fixedly installed on the ends of the two rectangular slide rods away from each other, two mounting brackets are fixedly installed on the side inner walls of the cavity, screw rod holes are formed in the sides of the two mounting brackets, the bidirectional screw rod is rotatably installed in the two screw rod holes, the two rectangular slide rods are threadedly sleeved on the two ends of the bidirectional screw rod, a control hole is formed in the side inner wall of the cavity, a control rod is rotatably installed in the control hole, a gear transmission unit for synchronously rotating the bidirectional screw rod is connected to one end of the control rod, and a second knob is fixedly installed on the other end of the control rod.

[0008] Preferably, the gear transmission unit includes a first bevel gear fixedly installed on the end of the control rod, and a second bevel gear meshing with the first bevel gear is fixedly sleeved on the bidirectional screw rod.

[0009] Preferably, the top of the clamp base is provided with a locking screw hole communicated with the control rotating hole, and a locking bolt is threadedly installed in the locking screw hole and abuts against the top of the control rotating rod.

[0010] Preferably, the top end of the fixed bolt and the side of the fixed plate are jointly and fixedly provided with a connecting rope.

[0011] Preferably, the outer arc surface of the arc-shaped clamping plate is fixedly provided with a mounting sleeve, the mounting sleeve is slidably sleeved on the end of the hexagonal sliding rod, the top of the mounting sleeve is provided with a dismounting screw hole, a dismounting bolt is threadedly installed in the dismounting screw hole and abuts against the top of the hexagonal sliding rod.

[0012] In summary, the technical effects and advantages of the present application are as follows:

[0013] 1. The present application has reasonable structure, when the second knob is rotated, the control rotating rod, the first bevel gear and the second bevel gear are driven to rotate synchronously, the bidirectional screw rod is rotated to drive the two arc-shaped clamping plates to move towards each other or away from each other through the rectangular sliding rod, the moving arm and the hexagonal sliding rod, thereby the flange with different diameters can be clamped and fixed or loosened, when the fixed bolt is moved into or out of the fixed hole, the first knob can be fixed or loosened, when the first knob is loosened, the first knob is rotated to drive the horizontal rotating rod to rotate, the horizontal rotating rod is rotated to drive the two rotating cylinders to rotate synchronously through the first sprocket, the transmission chain and the second sprocket, thereby the arc-shaped clamping plates are driven to rotate through the hexagonal sliding rod, so that the flange can be directly turned over, without the need to loosen and clamp the flange again, the operation is simple, the use is convenient and the practicability is good.

[0014] 2. In the present application, when the locking bolt is rotated, the control rotating rod can be tightly fixed or loosened under the cooperation of the locking screw hole, thereby the loosening of the flange caused by accidentally touching the second knob can be effectively reduced during the machining process, when the dismounting bolt is rotated, the mounting sleeve can be tightly fixed on the hexagonal sliding rod or loosened under the cooperation of the dismounting screw hole, so that the arc-shaped clamping plates can be conveniently dismounted and replaced, and the practicability is better. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the utility model of the cooperation of the fixed plate, the arc-shaped clamping plate and the horizontal rotating rod;

[0018] Figure 3 It is a three-dimensional structure schematic view of the utility model of the cooperation of the fixture base and the clamping control assembly;

[0019] Figure 4 It is a front view structure schematic view of the utility model.

[0020] In the drawing: 1, fixture base; 2, fixed plate; 3, rotating cylinder; 4, hexagonal slide rod; 5, arc-shaped clamping plate; 6, horizontal rotating rod; 7, first knob; 8, fixed lug; 9, fixed bolt; 10, moving arm; 11, first sprocket; 12, second sprocket; 13, transmission chain; 14, bidirectional screw rod; 15, rectangular slide rod; 16, control rotating rod; 17, second knob; 18, first bevel gear; 19, second bevel gear; 20, locking bolt; 21, connecting rope; 22, mounting sleeve; 23, dismounting bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment: refer to Figures 1-4The adjustable clamp for flange machining shown comprises a clamp base 1, the top of the clamp base 1 is fixedly provided with two fixed plates 2, the side of each of the two fixed plates 2 is provided with a first rotating hole and a second rotating hole, each of the two first rotating holes is rotatably provided with a rotating cylinder 3, each of the two rotating cylinders 3 is slidably sleeved with a hexagonal slide rod 4, the end of each of the two hexagonal slide rods 4 close to each other is provided with an arc-shaped clamping plate 5, the inner arc surface of each of the two arc-shaped clamping plates 5 is provided with a flange clamping groove, the end of each of the two hexagonal slide rods 4 away from each other is rotatably connected with a moving arm 10, the clamp base 1 is provided with a clamping control assembly for controlling the two moving arms 10 to move towards each other or away from each other at the same time, the clamping control assembly comprises a bidirectional screw rod 14, the clamp base 1 is provided with a cavity, the inner wall of the two sides of the cavity away from each other is provided with a rectangular slide hole, each of the two rectangular slide holes is slidably provided with a rectangular slide rod 15, the two moving arms 10 are fixedly installed on the end of each of the two rectangular slide rods 15 away from each other, the side inner wall of the cavity is fixedly provided with two mounting racks, the side of each of the two mounting racks is provided with a screw rod rotating hole, the bidirectional screw rod 14 is rotatably installed in the two screw rod rotating holes, the two rectangular slide rods 15 are threadedly sleeved on the two ends of the bidirectional screw rod 14, the side inner wall of the cavity is provided with a control rotating hole, the control rotating hole is rotatably provided with a control rotating rod 16, one end of the control rotating rod 16 is connected with a gear transmission unit for synchronously rotating the bidirectional screw rod 14, the other end of the control rotating rod 16 is fixedly provided with a second knob 17, when the second knob 17 is rotated, the control rotating rod 16 will be rotated, the rotation of the control rotating rod 16 will drive the bidirectional screw rod 14 to synchronously rotate through the gear transmission unit, the rotation of the bidirectional screw rod 14 will drive the two rectangular slide rods 15 to move towards each other or away from each other at the same time, and then the two arc-shaped clamping plates 5 can be driven to move towards each other or away from each other at the same time through the moving arms 10 and the hexagonal slide rods 4, so that the flanges with different diameters can be clamped and fixed or loosened;

[0023] The two second rotating holes are commonly rotatably provided with a horizontal rotating rod 6, the horizontal rotating rod 6 is connected with a sprocket transmission unit for synchronously rotating the two rotating cylinders 3, the sprocket transmission unit comprises two first sprockets 11 fixedly sleeved on the horizontal rotating rod 6, the two rotating cylinders 3 are each fixedly sleeved with a second sprocket 12, the first sprocket 11 and the second sprocket 12 located on the same side are commonly and adaptively installed with a transmission chain 13, the horizontal rotating rod 6 is fixedly sleeved with two first knobs 7, each of the two first knobs 7 is installed with a fixing unit, the fixing unit comprises a fixed lug 8 fixedly installed on the side of the fixed plate 2, the top of the fixed lug 8 is provided with a sliding hole, the sliding hole is slidably provided with a fixed pin 9, the circumferential side of the first knob 7 is uniformly provided with a plurality of fixing holes, the bottom end of the fixed pin 9 extends into one of the fixing holes.

[0024] By the above structure, in use, the flange can be first clamped and fixed by rotating the second knob 17 to move the two arc-shaped clamping plates 5 together towards each other, when one side of the flange is machined, and the other side needs to be machined, the fixed pin 9 can be pulled upwards to move out of the fixing hole, the first knob 7 is loosened, at this time the first knob 7 can be rotated to drive the horizontal rotating rod 6 to rotate, the horizontal rotating rod 6 rotates to drive the two rotating cylinders 3 to rotate synchronously through the first sprocket 11, the transmission chain 13 and the second sprocket 12, and then the arc-shaped clamping plate 5 and the flange can be rotated together through the hexagonal slide rod 4 until the flange is turned over, then the fixed pin 9 is inserted into the fixing hole to fix the first knob 7, the flange does not need to be loosened and clamped again, the operation is simple, convenient to use and good in practicability.

[0025] As shown in Figure 3 , the gear transmission unit includes a first bevel gear 18 fixedly installed on the end of the control rotating rod 16, and a second bevel gear 19 fixedly sleeved on the bidirectional screw rod 14 and engaged with the first bevel gear 18. When the control rotating rod 16 rotates, the first bevel gear 18 rotates to drive the second bevel gear 19 to rotate, thereby driving the bidirectional screw rod 14 to rotate synchronously, achieving the transmission effect.

[0026] As shown in Figure 3 , the top of the clamp base 1 is provided with a locking screw hole communicating with the control rotating hole, and a locking bolt 20 is threadedly installed in the locking screw hole, and the bottom end of the locking bolt 20 abuts against the top of the control rotating rod 16. When the locking bolt 20 is rotated, the control rotating rod 16 can be tightly fixed or loosened under the cooperation of the locking screw hole, so that the loosening of the flange caused by accidentally touching the second knob 17 can be effectively reduced during machining, and the stability is good during use.

[0027] As shown in Figure 2 , the top end of the fixed pin 9 and the side of the fixed plate 2 are jointly provided with a connecting rope 21. The connecting rope 21 can be used to connect the fixed pin 9 to avoid accidentally dropping and losing the fixed pin 9.

[0028] As shown in Figure 2 , the outer arc surface of the arc-shaped clamping plate 5 is fixedly provided with a mounting sleeve 22, the mounting sleeve 22 is slidably sleeved on the end of the hexagonal slide rod 4, the top of the mounting sleeve 22 is provided with a dismounting screw hole, and a dismounting screw 23 is threadedly installed in the dismounting screw hole, and the bottom end of the dismounting screw 23 abuts against the top of the hexagonal slide rod 4. When the dismounting screw 23 is rotated, the mounting sleeve 22 can be tightly fixed on the hexagonal slide rod 4 or loosened under the cooperation of the dismounting screw hole, thereby achieving the purpose of facilitating dismounting and replacing the arc-shaped clamping plate 5.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An adjustable fixture for flange machining comprising a fixture base (1), characterized in that: The top of the clamp base (1) is fixedly provided with two fixed plates (2), the side of each of the two fixed plates (2) is provided with a first rotating hole and a second rotating hole, a rotating cylinder (3) is rotatably arranged in each of the two first rotating holes, a hexagonal slide rod (4) is slidably sleeved in each of the two rotating cylinders (3), an arc-shaped clamping plate (5) is arranged on the end of each of the two hexagonal slide rods (4) which are close to each other, a flange groove is formed in the inner arc surface of each of the two arc-shaped clamping plates (5), a horizontal rotating rod (6) is rotatably arranged in the two second rotating holes, a chain wheel transmission unit for synchronously rotating the two rotating cylinders (3) is arranged on the horizontal rotating rod (6), a moving arm (10) is rotatably arranged on the end of each of the two hexagonal slide rods (4) which are away from each other, a clamping control assembly for simultaneously moving the two moving arms (10) towards or away from each other is arranged on the clamp base (1), two first knobs (7) are fixedly sleeved on the horizontal rotating rod (6), a fixing unit is arranged on each of the two first knobs (7), the fixing unit comprises a fixing protrusion (8) fixedly arranged on the side of the fixed plate (2), a sliding hole is formed in the top of the fixing protrusion (8), a fixing pin (9) is slidably arranged in the sliding hole, a plurality of fixing holes are uniformly formed in the circumferential side of the first knob (7), and the bottom end of the fixing pin (9) extends into one of the fixing holes.

2. The adjustable clamp for flange machining according to claim 1, characterized in that: The chain wheel transmission unit comprises two first chain wheels (11) fixedly sleeved on the horizontal rotating rod (6), a second chain wheel (12) is fixedly sleeved on each of the two rotating cylinders (3), and a transmission chain (13) is jointly and adaptively arranged on the first chain wheel (11) and the second chain wheel (12) on the same side.

3. The adjustable fixture for flange machining as claimed in claim 1, wherein: The clamping control assembly comprises a bidirectional screw rod (14), a cavity is formed in the clamp base (1), a rectangular sliding hole is formed in the inner wall of each of the two sides of the cavity which are away from each other, a rectangular slide rod (15) is slidably arranged in each of the two rectangular sliding holes, the two moving arms (10) are fixedly arranged on the ends of the two rectangular slide rods (15) which are away from each other, two mounting racks are fixedly arranged on the side inner wall of the cavity, a screw rod rotating hole is formed in the side of each of the two mounting racks, the bidirectional screw rod (14) is rotatably arranged in the two screw rod rotating holes, the two rectangular slide rods (15) are threadedly sleeved on the two ends of the bidirectional screw rod (14), a control rotating hole is formed in the side inner wall of the cavity, a control rotating rod (16) is rotatably arranged in the control rotating hole, a gear transmission unit for synchronously rotating the bidirectional screw rod (14) is arranged on one end of the control rotating rod (16), and a second knob (17) is fixedly arranged on the other end of the control rotating rod (16).

4. The adjustable fixture for flange machining according to claim 3, characterized in that: The gear transmission unit comprises a first bevel gear (18) fixedly arranged on the end of the control rotating rod (16), and a second bevel gear (19) engaged with the first bevel gear (18) is fixedly sleeved on the bidirectional screw rod (14).

5. The adjustable fixture for flange machining as claimed in claim 3, wherein: The top of the clamp base (1) is provided with a locking screw hole communicated with the control rotating hole, a locking bolt (20) is threadedly installed in the locking screw hole, and the bottom end of the locking bolt (20) abuts against the top of the control rotating rod (16).

6. The adjustable fixture for flange machining as claimed in claim 1, wherein: The top end of the fixed bolt (9) and the side of the fixed plate (2) are jointly provided with a connecting rope (21).

7. The adjustable fixture for flange machining as claimed in claim 1, wherein: The outer arc surface of the arc-shaped clamping plate (5) is fixedly provided with a mounting sleeve (22), the mounting sleeve (22) is slidably sleeved on the end of the hexagonal sliding rod (4), the top of the mounting sleeve (22) is provided with a dismounting screw hole, a dismounting bolt (23) is threadedly installed in the dismounting screw hole, and the bottom end of the dismounting bolt (23) abuts against the top of the hexagonal sliding rod (4).

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