Special clamping device for harmonica-shaped tube high-frequency welding machine

Abstract

The utility model discloses a clamping device special for a harmonica-shaped tube high-frequency welding machine. The clamping device comprises a supporting plate, a mounting mechanism is arranged on one side of the supporting plate, a horizontal driving air cylinder is arranged at the bottom of a connecting block, moving blocks are arranged on the two sides of the front end of the horizontal driving air cylinder, and clamping blocks are detachably arranged on the outer side walls of the moving blocks. The clamping block is sequentially composed of a mounting part, a bent part and a connecting part from back to front, a clamping assembly is arranged in the connecting part and comprises a ceramic rod arranged on the lower surface of the connecting part, and a clamping groove capable of clamping the end cover is formed in the bottom end of the inner side of the ceramic rod. According to the special clamping device for the harmonica-shaped tube high-frequency welding machine, the position of the clamping block is adjusted through the vertical driving air cylinder and the horizontal driving air cylinder, and the harmonica-shaped tube can be fixed while an end cover is limited and clamped in cooperation with a ceramic rod, so that the end cover is prevented from jumping during welding; and the welding wire cannot be attached to the gap between the end cover and the harmonica-shaped tube.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -frequency welding technical field especially relates to the special clamping device of harmonica tube high -frequency welding machine. BACKGROUND

[0002] High frequency welding refers to the resistance heat generated by high frequency current flowing through the contact surface of workpiece, and the workpiece metal is connected by applying pressure (or not applying pressure). High frequency welding is different from resistance welding. During high frequency welding, the welding current only flows parallel to the surface of the workpiece; the current of resistance welding flows perpendicular to the welding surface. Generally, the frequency of high frequency welding is selected at 300-450 kHz: resistance welding uses 50 kHz power frequency. It is a new type of welding process that uses the skin effect and proximity effect of high frequency current to butt joint metal materials. High frequency welding has a series of advantages: small weld heat affected zone, fast heating speed, and the metal can be heated to the welding temperature within one hundredth of a time, which can greatly improve the welding speed and quality; high frequency welding has low energy consumption and high efficiency. This technology is introduced into the welding of new energy water cooling plates to greatly improve production efficiency and save energy costs.

[0003] Currently, when welding a harmonica tube, the end cap is usually placed at both ends of the harmonica tube, then the harmonica tube is fixed, moved to a designated position, and the upper end cap is moved to the welding heating seat. After heating to a specified temperature, the welding wire is placed at the connection between the harmonica tube and the end cap for welding.

[0004] In the existing high frequency welding process, the traditional method is usually used to allow the worker to use the clamping device to fix a part of the harmonica tube, prevent the harmonica tube from shifting, then use other fixing devices to fix the end cap to be welded, and finally the worker controls the welding wire during welding to adhere to the welding position for welding. However, the end cap may jump upward or outward due to Lorentz force during welding heating, and the position between the harmonica tube and the end cap needs to be adjusted, which makes the worker's operation more troublesome. Since the end cap jumps during welding, the worker cannot adjust the position between the harmonica tube and the end cap at the same time, which affects the tight adhesion between the end cap, the harmonica tube and the welding wire, and affects the welding effect. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model provides a special clamping device for a harmonica tube high frequency welding machine. The device can clamp the harmonica tube and limit the end cap, achieving the technical effect of tight adhesion of the end cap and the harmonica tube.

[0006] To solve the above technical problems and achieve the above technical effects, the utility model realizes the following technical scheme:

[0007] The utility model discloses a technical scheme is: a special clamping device of harmonica tube high -frequency welding machine, including support plate, one side of support plate is provided with the installation mechanism for installing on high -frequency welding machine, the lower surface of support plate is provided with the connecting block, the upper surface of support plate is provided with the drive of drive connecting block vertical movement, the bottom fixed mounting of connecting block has horizontal drive air cylinder, both sides of horizontal drive air cylinder front end are provided with moving block, and the outer side wall of two moving blocks is detachably provided with the clamping block that can clamping harmonica tube.

[0008] The clamping block is sequentially composed of the mounting portion, the bending portion and the connecting portion from back to front, and the mounting portion and the connecting portion are designed in parallel, the inside of the connecting portion is provided with a clamping assembly, the clamping assembly comprises a ceramic rod arranged on the lower surface of the connecting portion, a plurality of ceramic rods are arranged along the length direction of the connecting portion, and a clamping groove capable of clamping an end cover is formed in the bottom end of the inner side of the ceramic rod.

[0009] Further, a clamping rod connected with the connecting portion is arranged at the top of the ceramic rod, a clamping groove matched with the clamping rod is formed in the lower surface of the connecting portion, and the length of the connecting portion is greater than that of the mounting portion.

[0010] Further, a threaded groove is formed in the outer side of the mounting portion and the connecting portion, the clamping rod is fixedly connected with the connecting portion through bolts, and the mounting portion is fixedly connected with the moving block through bolts.

[0011] Further, the two clamping blocks are designed in mirror image, and the ceramic rods are designed in cylindrical shape.

[0012] Further, the driving device comprises a vertical drive air cylinder fixedly installed on the upper surface of the support plate, the output end of the vertical drive air cylinder extends downward to the lower surface of the support plate, and the lower surface of the support plate is fixedly connected with the upper surface of the connecting block.

[0013] Further, a guide rod is vertically and penetratively arranged in the inside of the support plate and located on both sides of the vertical drive air cylinder, an active groove is formed in the inside of the support plate and can be vertically moved by the guide rod, and the bottom end of the guide rod is fixedly connected with the upper surface of the connecting block by penetrating the support plate.

[0014] Further, the length of the horizontal drive air cylinder is greater than that of the connecting block.

[0015] Further, the installation mechanism comprises a mounting seat, a plurality of first mounting holes are formed in the inside of the mounting seat, a fixing bolt is arranged in the inside of the first mounting hole, and the mounting seat is fixedly connected with the support plate through the fixing bolt.

[0016] Further, the top and bottom of the mounting seat are provided with second mounting holes, and mounting bolts connected with the high-frequency welding machine are arranged in the second mounting holes.

[0017] Further, the mounting seat and the support plate are T-shaped in vertical section.

[0018] The beneficial technical effects of the utility model are as follows: the position of the clamping block is adjusted through the vertical driving cylinder and the horizontal driving cylinder, the harmonica tube can be clamped, the ceramic rod can be used to limit and clamp the end cover, the ceramic rod can be pressed down to avoid the end cover from jumping, the welding wire can be better attached to the end cover, the welding wire is prevented from not being attached to the end cover, the design of the ceramic rod prevents the welding wire from not being melted due to poor heat conduction, the gap between the clamping groove and the end cover allows the welding wire to be inserted, the clamping groove can fix the welding wire, the welding wire can be prevented from jumping upward or outward during the melting process, the multiple ceramic rods can be pressed down uniformly, the device can fix the harmonica tube while limiting and clamping the end cover, the end cover is prevented from jumping during welding, and the welding wire is prevented from not being attached to the gap between the end cover and the harmonica tube. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure perspective view of the utility model;

[0020] Figure 2 is a structure perspective view of another view of the utility model;

[0021] Figure 3 is a structure side view of the utility model;

[0022] Figure 4 is a structure side view of the utility model;

[0023] Figure 5 is a structure front view of the utility model;

[0024] Figure 6 is a structure perspective view of the ceramic rod of the utility model;

[0025] Figure 7 is a structure top view of the clamping block of the utility model;

[0026] Figure 8 is a structure view of the clamping device and the high-frequency welding machine of the utility model;

[0027] Figure 9 is a structure view of the clamping device and the high-frequency welding machine of the utility model; Figure 8Structure stereogram at middle A.

[0028] Corresponding component name represented by figure and letter:

[0029] 1, support plate; 2, mounting seat; 21, first mounting hole; 22, second mounting hole; 3, vertical drive cylinder; 31, guide rod; 4, ceramic rod; 41, clamping rod; 42, clamping groove; 5, connecting block; 6, horizontal drive cylinder; 61, moving block; 7, clamping block; 71, mounting part; 72, bending part; 73, connecting part; 8, welding heating seat; 81, end cover; 82, harmonica tube; 9, high-frequency welding machine. DETAILED DESCRIPTION

[0030] In order to make the technical means of the utility model more clearly understood, and can be implemented according to the content of the specification, the specific embodiments of the utility model are further described in detail below, the following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0031] Referring to the accompanying Figures 1-9 As shown in the figure, a special clamping device of a harmonica tube high-frequency welding machine, including support plate 1, one side of support plate 1 is provided with the mounting mechanism for being installed on high-frequency welding machine 9, the mounting mechanism includes mounting seat 2, a plurality of first mounting holes 21 are opened in the inside of mounting seat 2, the inside of first mounting hole 21 is provided with fixed bolt, and mounting seat 2 is fixedly connected between support plate 1 through fixed bolt, the top and bottom of the inside of mounting seat 2 are opened with second mounting hole 22, the inside of second mounting hole 22 is provided with the mounting bolt connected with high-frequency welding machine 9, and mounting seat 2 is fixedly connected with high-frequency welding machine 9 through mounting bolt, the vertical section of mounting seat 2 and support plate 1 is T-shaped design.

[0032] First, end cover 81 is sleeved on the two ends of harmonica tube 82, bottom end cover 81 is placed on the welding heating seat 8 of high-frequency welding machine 9, then mounting seat 2 is fixed through first mounting hole 21 and support plate 1 through fixed bolt, after mounting seat 2 is fixedly connected with high-frequency welding machine 9 through mounting bolt, the T-shaped design of support plate 1 and mounting seat 2 makes that support plate 1 can be installed on the inner wall of high-frequency welding machine 9, so that the device is located above end cover 81.

[0033] The lower surface of the support plate 1 is provided with a connecting block 5, the upper surface of the support plate 1 is provided with a driving device for driving the vertical movement of the connecting block 5, the driving device comprises a vertical driving cylinder 3 fixedly installed on the upper surface of the support plate 1, the output end of the vertical driving cylinder 3 extends downward to the lower surface of the support plate 1, and the lower surface of the support plate 1 is fixedly connected with the upper surface of the connecting block 5, and the inside of the support plate 1 and located on both sides of the vertical driving cylinder 3 are vertically penetrated by guide rods 31, and the inside of the support plate 1 is provided with a movable groove for the vertical movement of the guide rod 31, and the bottom end of the guide rod 31 is fixedly connected with the upper surface of the connecting block 5 through the support plate 1.

[0034] The bottom of the connecting block 5 is fixedly installed with a horizontal driving cylinder 6, the two sides of the front end of the horizontal driving cylinder 6 are provided with moving blocks 61, and the horizontal driving cylinder 6 can drive the horizontal movement of the moving blocks 61, the outer side walls of the two moving blocks 61 are detachably provided with clamping blocks 7 capable of clamping the mouthpiece tube 82, the two clamping blocks 7 are mirror image designed, the clamping block 7 is sequentially composed of an installation part 71, a bending part 72 and a connecting part 73 from back to front, and the installation part 71 and the connecting part 73 are parallel designed.

[0035] The mirror image design of the two clamping blocks 7, when the moving blocks 61 move inward through the horizontal driving cylinder 6, the two clamping blocks 7 can simultaneously move inward to each other, clamping and fixing the mouthpiece tube 82, so that the mouthpiece tube 82 closely fits the end cover 81.

[0036] By setting the vertical driving cylinder 3, after the support plate 1 is fixed on the high-frequency welding machine 9, the vertical driving cylinder 3 is started, then the bottom end of the vertical driving cylinder 3 pushes the connecting block 5 to move vertically downward, then the connecting block 5 reaches the specified height, the horizontal driving cylinder 6 is started, the horizontal driving cylinder 6 drives the two clamping blocks 7 to move horizontally inward, for adjusting the distance between the two clamping blocks 7.

[0037] The inside of the connecting part 73 is provided with a clamping assembly, the clamping assembly comprises ceramic rods 4 arranged on the lower surface of the connecting part 73, the ceramic rods 4 are provided in plurality, the plurality of ceramic rods 4 are arranged at intervals along the length direction of the connecting part 73, the inside bottom end of the ceramic rod 4 is provided with a clamping groove 42 capable of downward pressing and clamping fixing the top of the end cover 81, and the ceramic rod 4 is cylindrically arranged.

[0038] When the plurality of ceramic rods 4 are pressed downward, the clamping grooves 42 at the bottom of the plurality of ceramic rods 4 will press the end cover 81, so that the end cover 81 will not shake during welding, and the two clamping blocks 7 can also fix the mouthpiece tube 82, when the heating wire in the welding heating seat 8 is lifted, the welding wire is welded between the end cover 81 and the mouthpiece tube 82.

[0039] When the two clamping blocks 7 are close to each other, the ceramic rods 4 in the clamping assembly are also close, and the clamping grooves 42 at the bottom of the ceramic rods 4 can better fit the upper surface of the end cover 81 and limit the downward movement of the end cover 81 to form the clamping function through the subsequent downward adjustment of the vertical driving cylinder 3. The multiple clamping grooves 42 of the ceramic rods 4 can make the downward pressure more uniform when the multiple clamping grooves 42 clamp the welding machine. When the end cover 81 is sleeved on the specified position of the harmonica tube 82, the vertical driving cylinder 3 is started to drive the connecting block 5 to move downward to the specified position, and then the horizontal driving cylinder 6 is started to control the two clamping blocks 7 to move inward to clamp the harmonica tube 82. Then the ceramic rods 4 limit the surface of the end cover 81 through the clamping grooves 42, so that the welding ring (welding wire) can be closely fitted, and the welding wire and the end cover 81 are not tightly fitted. The design of the ceramic rods 4 can fix the end cover 81 through the clamping grooves 42, avoid the upward or outward jumping of the end cover during the heating and welding process, and replace the traditional manual pressing with tools. The problem that the staff needs to hold the welding wire and clamp the end cover 81 at the same time is avoided, and the operation is more convenient.

[0040] The top of the ceramic rod 4 is provided with a clamping rod 41 connected with the connecting part 73. The lower surface of the connecting part 73 is provided with a clamping groove matched with the clamping rod 41. The length of the connecting part 73 is greater than that of the mounting part 71. The outer sides of the mounting part 71 and the connecting part 73 are provided with threaded grooves. The clamping rod 41 is fixedly connected with the connecting part 73 through bolts. The mounting part 71 is fixedly connected with the moving block 61 through bolts.

[0041] Through the clamping rod 41, when the ceramic rod 4 needs to be installed, the clamping rod 41 at the top of the ceramic rod 4 is inserted into the clamping groove in the connecting part 73. Then the bolts are screwed into the connecting part 73 through the threaded grooves on the outer side of the connecting part 73 to fix the clamping rod 41, so that the ceramic rod 4 can be assembled with the clamping block 7.

[0042] The welding heating seats 8 are arranged at intervals along the length direction of the high-frequency welding machine 9, so as to weld the multiple end covers 81 and the harmonica tube 82.

[0043] The above description is only the preferred embodiments of the present application, and is not used to limit the present application. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A special fixture for a harmonica tube high frequency welding machine, characterized in that, Include: Supporting plate (1), one side of the supporting plate (1) is provided with mounting mechanism for mounting on high frequency welding machine (9), the lower surface of the supporting plate (1) is provided with connecting block (5), the upper surface of the supporting plate (1) is provided with driving device for driving the connecting block (5) vertical movement, the bottom of the connecting block (5) is fixedly installed with horizontal drive cylinder (6), both sides of the front end of the horizontal drive cylinder (6) are provided with moving block (61), the outer side wall of the two moving blocks (61) is detachably provided with clamping block (7) capable of clamping mouthpiece tube (82); The clamping block (7) is composed of mounting portion (71), bending portion (72) and connecting portion (73) from back to front in sequence, and the mounting portion (71) and the connecting portion (73) are designed in parallel, the inside of the connecting portion (73) is provided with a clamping assembly, the clamping assembly comprises ceramic rods (4) arranged on the lower surface of the connecting portion (73), the ceramic rods (4) are provided with a plurality of ceramic rods (4), the plurality of ceramic rods (4) are arranged along the length direction of the connecting portion (73), and the bottom end of the inside of the ceramic rod (4) is provided with a clamping groove (42) capable of clamping an end cover (81).

2. The special fixture for a harmonica tube high frequency welding machine according to claim 1, characterized in that, The top of the ceramic rod (4) is provided with a clamping rod (41) connected with the connecting portion (73), the lower surface of the connecting portion (73) is provided with a clamping groove matched with the clamping rod (41), and the length of the connecting portion (73) is greater than that of the mounting portion (71).

3. The special fixture for a harmonica tube high frequency welding machine according to claim 2, characterized in that, The outer side of the mounting portion (71) and the connecting portion (73) is provided with a threaded groove, the clamping rod (41) is fixedly connected with the connecting portion (73) through bolts, and the mounting portion (71) is fixedly connected with the moving block (61) through bolts.

4. The special fixture for a harmonica tube high frequency welding machine according to claim 1, characterized in that, Two clamping blocks (7) are designed in mirror image, and the ceramic rods (4) are designed in cylindrical shape.

5. The special fixture for a harmonica tube high frequency welding machine according to claim 1, characterized in that, The driving device comprises a vertical drive cylinder (3) fixedly installed on the upper surface of the supporting plate (1), the output end of the vertical drive cylinder (3) extends downward to the lower surface of the supporting plate (1), and the lower surface of the supporting plate (1) is fixedly connected with the upper surface of the connecting block (5).

6. The special fixture for a harmonica tube high frequency welding machine according to claim 5, characterized in that, The inside of the supporting plate (1) and the two sides of the vertical drive cylinder (3) are vertically provided with guide rods (31), and the inside of the supporting plate (1) is provided with a movable groove for vertical movement of the guide rod (31), and the bottom end of the guide rod (31) is fixedly connected with the upper surface of the connecting block (5) through the supporting plate (1).

7. The special fixture for a harmonica tube high frequency welding machine according to claim 1, characterized in that, The length of the horizontal drive cylinder (6) is greater than the length of the connecting block (5).

8. The special fixture for a harmonica tube high frequency welding machine according to claim 1, characterized in that, The mounting mechanism comprises a mounting seat (2), a plurality of first mounting holes (21) are formed in the inside of the mounting seat (2), a fixing bolt is arranged in the inside of the first mounting hole (21), and the mounting seat (2) is fixedly connected with the supporting plate (1) through the fixing bolt.

9. The special clamping device for a harmonica tube high-frequency welding machine according to claim 8, characterized in that, The top and bottom of the mounting seat (2) are provided with second mounting holes (22), and the second mounting holes (22) are provided with mounting bolts connected with the high-frequency welding machine (9).

10. The special fixture for a harmonica tube high frequency welding machine according to claim 9, characterized in that, The vertical section of the mounting seat (2) and the support plate (1) is designed in a T shape.

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