Welding fixture

Abstract

The utility model discloses a welding fixture, relates to welding fixture technical field, including fixing mechanism, also including placing mechanism and clamping mechanism, placing mechanism includes placing plate, placing plate top left side and rear side both are equipped with the limit block, placing plate top right side and front side both are equipped with the limit rod, and the clamping mechanism is equipped with the limit rod. The clamping mechanism comprises a fixing plate, a hydraulic cylinder is arranged in the middle of the inner wall of the fixing plate, movable bases are installed at the two output ends of the hydraulic cylinder correspondingly, and pressing plates are arranged at the tops of the two movable bases correspondingly. Through the connection between the wedge-shaped plate and the clamping plate, the clamping plate can support the inner side of the supporting seat, so that the fixed base, the supporting seat and the placing plate are tightly connected, the limiting block and the limiting rod can limit the outer wall of a workpiece, and the distance between the two movable seats can be adjusted when the hydraulic cylinder works; the adjusting bolt is loosened, so that the pressing plate can press the inner side of the workpiece, and the workpiece is kept stable.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to a welding fixture. Background Art

[0002] Welding fixtures are used to ensure the size of weldments, improve assembly accuracy and efficiency, and prevent welding deformation.

[0003] The prior art has the following deficiencies: the existing welding fixture usually adopts manual welding when welding the medical bed base, and is unable to stably clamp and fix the base, making it easy for the base to move during the welding process. At the same time, the fixture cannot be conveniently combined with the robotic arm, and thus cannot conveniently perform welding operations on different positions of the medical bed base, which affects the welding efficiency.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a welding clamp, which enables the clamping plate to support the inner side of the support seat through the connection between the wedge plate and the clamping plate, so that the fixed base, the support seat and the placement plate are tightly connected, and the outer wall of the workpiece can be limited by the limit block and the limiting rod. At the same time, the distance between the two movable seats can be adjusted when the hydraulic cylinder is working, and then the extension length of the pressing plate can be adjusted by loosening the adjusting bolt, so that the pressing plate can press and fix the inner side of the workpiece, so as to solve the above-mentioned deficiencies in the technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding fixture, including a fixing mechanism, and also including:

[0007] A placing mechanism, arranged on the top of the fixing mechanism, for placing the workpiece;

[0008] A clamping mechanism, arranged on the top of the placing mechanism, for clamping and fixing the workpiece;

[0009] The fixing mechanism comprises a fixing base, a support base is arranged at one end of the top of the fixing base, and a positioning pin is arranged between the support base and the fixing base;

[0010] The placement mechanism comprises a placement plate, which is arranged on the top of the support seat, a fixing pin is arranged between the placement plate and the support seat, a limiting block is movably installed on the left side and the rear side of the top of the placement plate, and a limiting rod is movably installed on the right side and the front side of the top of the placement plate;

[0011] The clamping mechanism includes a fixed plate, which is fixed to the top of the placement plate by pins. A hydraulic cylinder is arranged in the middle position of the inner wall of the fixed plate. Both output ends of the hydraulic cylinder are fixedly mounted with movable seats. Pressure plates are arranged on the tops of the two movable seats. Adjustment bolts are arranged between the movable seats and adjacent pressure plates.

[0012] Preferably, the fixing mechanism comprises a clamping plate, the clamping plate is fixedly mounted on the top of the fixing base, and an outer wall at one end of the clamping plate is movably connected to an inner side of one end of the supporting seat.

[0013] Preferably, a wedge-shaped plate is fixedly installed at the bottom of the placement plate, the outer wall of the wedge-shaped plate is movably connected to the inner side of the clamping plate, and the front vertical section of the wedge-shaped plate is arranged as a trapezoidal structure.

[0014] Preferably, the clamping mechanism comprises a movable groove, the movable groove is opened at a middle position of an inner wall of the fixed plate, and the middle position of the inner wall of the movable groove is fixedly connected to the hydraulic cylinder.

[0015] Preferably, the inner walls on both sides of the movable groove are movably connected to the outer walls of the two movable seats respectively, and the top inner wall of the movable seat is threadedly connected to the bottom outer wall of the adjacent adjusting bolt.

[0016] Preferably, the inner wall of the pressure plate is movably connected to the outer wall of the adjacent adjusting bolt, and the width dimension of the pressure plate is greater than the width dimension of the movable seat.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. The support seat and the fixed base can be connected by the positioning pin, and the fixing pin can connect the placement plate and the support seat. The connection between the wedge plate and the clamping plate enables the clamping plate to support the inner side of the support seat, so that the fixed base, the support seat and the placement plate are tightly connected. The outer wall of the workpiece can be limited by the limit block and the limiting rod. At the same time, the distance between the two movable seats can be adjusted when the hydraulic cylinder is working, and then the extension length of the pressing plate can be adjusted by loosening the adjusting bolt, so that the pressing plate can press and fix the inner side of the workpiece, so that the workpiece remains stable during the welding process. At the same time, the connection between the fixed base and the welding manipulator can conveniently perform welding operations on different positions of the workpiece, which can improve the efficiency of welding work;

[0019] 2. The movable groove can be used to limit the movement of the movable seat so that the movable seat remains stable during the movement. At the same time, the connection between the adjusting bolt and the inner wall of the pressure plate can limit the movement of the pressure plate, and then the extension length of the pressure plate can be stably adjusted, so that the pressure plate can stably press and fix the inner side of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a front vertical sectional view of the utility model.

[0023] Figure 3 It is an exploded view of the three-dimensional structure of the fixing mechanism of the utility model.

[0024] Figure 4 It is an exploded view of the three-dimensional structure of the placement mechanism and the clamping mechanism of the utility model.

[0025] Figure 5 This is a usage scenario diagram of the utility model.

[0026] Description of reference numerals:

[0027] 1. Fixing mechanism; 101. Fixing base; 102. Snap-on plate; 103. Support seat; 104. Positioning pin; 105. Fixing pin;

[0028] 2. Placement mechanism; 201. Placement plate; 202. Wedge plate; 203. Limit block; 204. Limit rod;

[0029] 3. Clamping mechanism; 301. Fixed plate; 302. Movable groove; 303. Hydraulic cylinder; 304. Movable seat; 305. Pressing plate; 306. Adjusting bolt. DETAILED DESCRIPTION

[0030] The utility model provides Figure 1 and Figure 5 A welding fixture shown includes a fixing mechanism 1 and further includes:

[0031] The placing mechanism 2 is arranged on the top of the fixing mechanism 1 and is used for placing the workpiece;

[0032] The clamping mechanism 3 is arranged on the top of the placing mechanism 2 and is used for clamping and fixing the workpiece.

[0033] In order to stably install and fix the placement mechanism 2 and the clamping mechanism 3, as shown in FIG. Figure 2 and Figure 3As shown, the fixing mechanism 1 includes a fixing base 101, a supporting base 103 is arranged at one end of the top of the fixing base 101, a positioning pin 104 is arranged between the supporting base 103 and the fixing base 101, and the supporting base 103 can be fixed to the top of the fixing base 101 through the positioning pin 104, and the placement mechanism 2 can be supported and fixed through the supporting base 103.

[0034] In order to easily define the workpiece, such as Figure 2 and Figure 4-5 As shown, the placement mechanism 2 includes a placement plate 201, which is arranged on the top of the support seat 103. A fixing pin 105 is arranged between the placement plate 201 and the support seat 103. Limit blocks 203 are movably installed on the left side and the rear side of the top of the placement plate 201, and limiting rods 204 are movably installed on the right side and the front side of the top of the placement plate 201. The outer wall of the workpiece can be limited by the limit blocks 203 and the limiting rods 204.

[0035] In order to facilitate the fixation of the workpiece, Figure 2 and Figure 4-5 As shown, the clamping mechanism 3 includes a fixed plate 301, which is fixed to the top of the placement plate 201 by pins, and a hydraulic cylinder 303 is arranged in the middle position of the inner wall of the fixed plate 301, and movable seats 304 are fixedly installed at both output ends of the hydraulic cylinder 303, and pressure plates 305 are arranged on the top of the two movable seats 304, and adjusting bolts 306 are arranged between the movable seats 304 and the adjacent pressure plates 305. The hydraulic cylinder 303 can adjust the distance between the two movable seats 304 when it is working, and the position of the pressure plate 305 can be adjusted by loosening the adjusting bolts 306, so that the two pressure plates 305 can press and fix the inner side of the workpiece.

[0036] In order to make the placement plate 201 and the fixed base 101 tightly connected, as Figure 2-4 As shown, the fixing mechanism 1 includes a snap-in plate 102, which is fixedly installed on the top of the fixed base 101, and the outer wall of one end of the snap-in plate 102 is movably connected to the inner side of one end of the support seat 103. A wedge plate 202 is fixedly installed on the bottom of the placement plate 201, and the outer wall of the wedge plate 202 is movably connected to the inner side of the snap-in plate 102. The front vertical section of the wedge plate 202 is set to a trapezoidal structure. The wedge plate 202 is inserted into the inner side of the snap-in plate 102, which can push the snap-in plate 102 to support the inner side of the support seat 103, so that the fixed base 101, the support seat 103 and the placement plate 201 can be tightly connected.

[0037] In order to keep the movable seat 304 stable during the movement, Figure 2 and Figure 4As shown, the clamping mechanism 3 includes a movable groove 302, which is opened in the middle position of the inner wall of the fixed plate 301, and the middle position of the inner wall of the movable groove 302 is fixedly connected to the hydraulic cylinder 303. The inner walls on both sides of the movable groove 302 are movably connected to the outer walls of two movable seats 304 respectively, and the top inner wall of the movable seat 304 is threadedly connected to the bottom outer wall of the adjacent adjusting bolt 306. The movable groove 302 can limit the movement of the movable seat 304, so that the movable seat 304 remains stable during the movement.

[0038] In order to conveniently adjust the extension length of the pressing plate 305, as Figure 2 and Figure 4 As shown, the inner wall of the pressure plate 305 is movably connected to the outer wall of the adjacent adjusting bolt 306, and the width dimension of the pressure plate 305 is greater than the width dimension of the movable seat 304. By loosening the adjusting bolt 306 to separate it from the top of the pressure plate 305, the pressure plate 305 can be moved on the outside of the adjusting bolt 306, and the extension length of the pressure plate 305 can be adjusted.

[0039] The specific implementation method is as follows: during the welding process, the support seat 103 is placed on the top of the fixed base 101, and the positioning pin 104 can be used to fix the support seat 103, and then the placement plate 201 is placed on the top of the support seat 103, and the fixing pin 105 can be used to connect the placement plate 201 and the support seat 103, and at the same time, the wedge plate 202 is inserted into the inner side of the clamping plate 102, so that the clamping plate 102 can support the inner side of the support seat 103, so that the placement plate 201, the support seat 103 and the fixed base 101 are tightly connected, and at the same time, the clamping mechanism 3 can be fixed to the top of the placement plate 201 by using the pin, and at the same time, the limit block 203 is fixed to the left and rear sides of the top of the placement plate 201, and the limiting rod 204 is fixed to the right and front sides of the top of the placement plate 201, and then the workpiece is placed on the placement plate 201. At the top, the limit block 203 and the limiting rod 204 can limit the outside of the workpiece, and at the same time, the hydraulic cylinder 303 works to make the two movable seats 304 move along the inner wall of the movable groove 302, and then separate it from the top of the pressure plate 305 by loosening the adjusting bolt 306, so that the extension length of the pressure plate 305 can be adjusted. When the pressure plate 305 can press and fix the inside of the workpiece, the adjusted pressure plate 305 can be fixed by tightening the adjusting bolt 306, so that the workpiece remains stable during the welding process. At the same time, through the matching between the fixed base 101 and the manipulator, welding operations can be conveniently performed on different orientations of the workpiece, which can improve the efficiency of the welding work. This embodiment specifically solves the problem that the workpiece cannot be conveniently fixed in the prior art, which makes the workpiece easy to move during the welding process.

[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that 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 welding fixture, comprising a fixing mechanism (1), characterized in that: Also includes: A placing mechanism (2), arranged on the top of the fixing mechanism (1), for placing the workpiece; A clamping mechanism (3) is arranged on the top of the placement mechanism (2) and is used to clamp and fix the workpiece; The fixing mechanism (1) comprises a fixing base (101), a support base (103) is arranged at one end of the top of the fixing base (101), and a positioning pin (104) is arranged between the support base (103) and the fixing base (101); The placement mechanism (2) comprises a placement plate (201), the placement plate (201) being arranged on the top of the support seat (103), a fixing pin (105) being arranged between the placement plate (201) and the support seat (103), a limiting block (203) being movably installed on the left side and the rear side of the top of the placement plate (201), and a limiting rod (204) being movably installed on the right side and the front side of the top of the placement plate (201); The clamping mechanism (3) comprises a fixed plate (301), the fixed plate (301) being fixed to the top of the placement plate (201) by means of pins, a hydraulic cylinder (303) being arranged in the middle of the inner wall of the fixed plate (301), movable seats (304) being fixedly mounted on both output ends of the hydraulic cylinder (303), pressure plates (305) being arranged on the tops of the two movable seats (304), and adjusting bolts (306) being arranged between the movable seats (304) and adjacent pressure plates (305).

2. A welding fixture according to claim 1, characterized in that: The fixing mechanism (1) comprises a clamping plate (102), wherein the clamping plate (102) is fixedly mounted on the top of the fixing base (101), and an outer wall at one end of the clamping plate (102) is movably connected to the inner side of one end of the supporting base (103).

3. A welding fixture according to claim 2, characterized in that: A wedge-shaped plate (202) is fixedly mounted on the bottom of the placement plate (201), the outer wall of the wedge-shaped plate (202) is movably connected to the inner side of the clamping plate (102), and the front vertical section of the wedge-shaped plate (202) is arranged to be a trapezoidal structure.

4. A welding fixture according to claim 1, characterized in that: The clamping mechanism (3) comprises a movable groove (302), wherein the movable groove (302) is provided at a middle position of an inner wall of the fixed plate (301), and the middle position of the inner wall of the movable groove (302) is fixedly connected to a hydraulic cylinder (303).

5. A welding fixture according to claim 4, characterized in that: The inner walls on both sides of the movable groove (302) are movably connected to the outer walls of the two movable seats (304) respectively, and the top inner wall of the movable seat (304) is threadedly connected to the bottom outer wall of the adjacent adjusting bolt (306).

6. A welding fixture according to claim 1, characterized in that: The inner wall of the pressing plate (305) is movably connected to the outer wall of the adjacent adjusting bolt (306), and the width dimension of the pressing plate (305) is greater than the width dimension of the movable seat (304).

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