An auxiliary equipment for welding production of steel furniture

Abstract

The application belongs to the technical field of tool fixtures, and particularly relates to an auxiliary device for welding production of steel furniture. The structure of the auxiliary device comprises a groove bottom plate unit, a top limiting frame body unit arranged on the upper surface of the groove bottom plate unit, a sliding limiting frame body unit inserted and arranged on the groove bottom plate unit, a double-sided pressing rod unit sleeved on the sliding limiting frame body unit and used for pressing and fixing a round pipe or a square pipe, a double-sided base plate unit arranged on the groove bottom plate unit and used for supporting and fixing the round pipe or the square pipe, and a jacking spring arranged on the top limiting frame body unit and used for pressing the double-sided pressing rod unit.

Description

Technical Field

[0001] This application belongs to the field of tooling and fixture technology, and in particular relates to an auxiliary device for welding production of steel furniture. Background Technology

[0002] Common types of steel furniture include tables and chairs, bed frames, shelves, and wardrobes. The materials used in these pieces primarily include ordinary carbon steel, stainless steel, and alloy steel.

[0003] The steel furniture mentioned above typically undergoes processes such as bending, welding, and bolting during production. The main function of the auxiliary equipment is to clamp and fix one of the two steel pipes to be welded during the welding process, thereby reducing the difficulty of the welding operation and improving the quality of the welding process.

[0004] For example, Chinese utility model patent with authorization announcement number CN214054112U and authorization announcement date of August 27, 2021 discloses a steel pipe welding auxiliary device for steel furniture production. Its main structural components include: base plate, base, platform, fixed seat, slider, rack, second slide rail, rotating shaft, third knob, and gear.

[0005] The auxiliary device in this utility model patent has the following advantages: by driving the two fixed seats on the front and rear sides to move towards each other along the first slide rail, the inner end of the steel pipe is clamped and fixed by the fixed seats, and the steel pipe can be stably welded by fixing the fixed plate and the fixed seat.

[0006] However, in actual use, this auxiliary device still has obvious shortcomings in practicality. Specifically, in addition to the round tubes mentioned above, the steel tubes that make up common steel furniture are also square tubes. This auxiliary device is unable to provide square tubes with sufficient strength and convenient clamping effect. Utility Model Content

[0007] This application provides an auxiliary device for welding production of steel furniture. The technical problem to be solved is: how to make the auxiliary device for welding steel pipes provide a clamping effect that is strong enough and easy to implement for both round and square pipes.

[0008] The technical solution adopted by this application to solve the above problems is: an auxiliary equipment for welding production of steel furniture, the structure of which includes a grooved bottom plate unit, a top limiting frame unit disposed on the upper surface of the grooved bottom plate unit, a sliding limiting frame unit inserted into the grooved bottom plate unit, a double-sided pressure bar unit sleeved on the sliding limiting frame unit and used for pressing down and fixing a round or square tube, a double-sided pad unit disposed on the grooved bottom plate unit and used for supporting and fixing a round or square tube, and a lifting spring disposed on the top limiting frame unit and used for pressing down the double-sided pressure bar unit.

[0009] A further preferred technical solution is that the grooved base plate unit includes a base plate, a track groove disposed on the upper surface of the base plate for sliding the sliding limiting frame unit, and a positioning groove disposed on the upper surface of the base plate for installing the double-sided pad unit.

[0010] A further preferred technical solution is that the top limiting frame unit includes a vertical plate disposed on the base plate, and a horizontal fixing plate disposed on the vertical plate, the lower surface of which is used to install the lifting spring.

[0011] A further preferred technical solution is that the top limiting frame unit also includes a plate disposed between the vertical plate and the horizontal fixing plate, and the vertical plate blocks the horizontal protrusion of the protective welding gun by horizontally retracting the horizontal fixing plate.

[0012] A further preferred technical solution is that the sliding limiting frame unit includes a sliding block disposed on the track groove, and a vertical rod disposed on the sliding block, the upper end face of which is lower than the lower surface height of the transverse fixing plate, and is used to sleeve the double-sided pressure bar unit.

[0013] A further preferred technical solution is that the double-sided pressure bar unit includes a horizontal bar, an arc-shaped slot and a rectangular slot arranged symmetrically on the horizontal bar and used to pass through the end hole of the vertical bar, and a limiting bar arranged on the horizontal bar and used selectively, and a limiting bar arranged on the horizontal bar and used to fit and install the lifting spring.

[0014] A further preferred technical solution is that the double-sided pressure bar unit further includes a side protrusion plate disposed on the transverse bar and used to lift the transverse bar upward.

[0015] A further preferred technical solution is that the double-sided pad unit includes a flat plate disposed on the positioning groove, and an arc-shaped bottom groove and a rectangular bottom groove respectively disposed on two symmetrical sides of the flat plate.

[0016] A further preferred technical solution is that the double-sided pad unit further includes elastic pads respectively disposed on two symmetrical sides of the flat plate and used to support the limiting rod.

[0017] A further preferred technical solution is that the top limiting frame unit further includes a fixing rod disposed on the lower surface of the transverse fixing plate and used to sleeve and install the lifting spring.

[0018] The beneficial effects of this application include at least the following three points.

[0019] First, the auxiliary equipment, through the flip-up features of the double-sided pressure bar unit and the double-sided pad unit, as well as the sliding and exposed features of the sliding limit frame unit, can selectively trigger the full clamping effect on the square tube and the round tube, significantly improving its practicality.

[0020] Secondly, the sliding limit frame unit has the dual advantages of good stability when used in a fixed position and convenient and efficient movement operation when the double-sided pressure bar unit needs to be flipped, which makes the clamping function of the auxiliary equipment for square tubes and round tubes flexibly switchable.

[0021] Third, the double-sided pressure bar unit, combined with the lifting spring, provides sufficient and appropriate clamping strength to the square and round tubes. Once the former is lifted upwards, the workpiece that has been welded can be removed, making the entire clamping auxiliary operation simple and efficient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this application.

[0023] Figure 2 This refers to a shape or style of circular tube in existing technology.

[0024] Figure 3 This is a shape and style of square tube in existing technology.

[0025] Figure 4 This is a structural schematic diagram of the grooved bottom plate unit in this application.

[0026] Figure 5 This is a structural schematic diagram of the top limiting frame unit in this application.

[0027] Figure 6 This is a schematic diagram of the position and structure of the sliding limit frame unit in this application.

[0028] Figure 7 This is a schematic diagram of the double-sided compression bar unit in this application.

[0029] Figure 8 This is a structural schematic diagram of the double-sided pad unit in this application.

[0030] Figure 9 This is a schematic diagram of the general principle of the vertical plate blocking and protecting the welding torch in this application, viewed from the side.

[0031] The meanings of the markings in the diagram are as follows.

[0032] a) Round pipe, b) Square pipe, c) Welding torch;

[0033] 1. Grooved bottom plate unit; 2. Top limiting frame unit; 3. Sliding limiting frame unit; 4. Double-sided pressure bar unit; 5. Double-sided pad unit; 6. Lifting spring.

[0034] Base plate 101, track groove 102, positioning groove 103;

[0035] Vertical plate 201, horizontal fixing plate 202, horizontal protruding plate 203, fixing rod 204, positioning groove 205;

[0036] Sliding block 301, vertical rod 302, elastic sheet 303;

[0037] Horizontal rod 401, end hole 402, arc-shaped slot 403, rectangular slot 404, limiting rod 405, side protrusion plate 406;

[0038] Flat plate 501, arc-shaped bottom groove 502, rectangular bottom groove 503, elastic gasket 504. Detailed Implementation

[0039] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0040] like Figures 1-9 As shown, an auxiliary device for welding production of steel furniture includes a grooved bottom plate unit 1, a top limiting frame unit 2 disposed on the upper surface of the grooved bottom plate unit 1, a sliding limiting frame unit 3 inserted into the grooved bottom plate unit 1, a double-sided pressure rod unit 4 sleeved on the sliding limiting frame unit 3 for pressing down and fixing a round tube a or a square tube b, a double-sided pad unit 5 disposed on the grooved bottom plate unit 1 for supporting and fixing the round tube a or the square tube b, and a lifting spring 6 disposed on the top limiting frame unit 2 for pressing down the double-sided pressure rod unit 4.

[0041] In this embodiment, the term "double-sided" in the double-sided pressure bar unit 4 and the double-sided pad unit 5 has the same meaning: when one side of each of them is facing each other, the round tube a can be stably clamped; when the other side of each of them is facing each other, the square tube b can be stably clamped, thereby improving the practicality of the auxiliary equipment.

[0042] On the other hand, the top limiting frame unit 2, the sliding limiting frame unit 3, the double-sided pressure rod unit 4, and the lifting spring 6 cooperate with each other, enabling the double-sided pressure rod unit 4 to have an initial state and a normal state of clamping the round tube a or the square tube b. Therefore, when force is applied to the double-sided pressure rod unit 4 and it is lifted, the round tube a or the square tube b can be inserted. When the force is removed, the double-sided pressure rod unit 4 can fully and appropriately clamp the round tube a or the square tube b through the lifting spring 6, making the auxiliary clamping function during the welding of steel furniture convenient and with sufficient force. Correspondingly, this requires that the elasticity of the lifting spring 6 be sufficient and appropriate, and it needs to be replaced regularly.

[0043] Furthermore, the sliding function of the sliding limit frame unit 3 is to allow the double-sided pressure bar unit 4 to be used interchangeably. Similarly, the double-sided pad unit 5 is simply inserted into the grooved bottom plate unit 1, which also allows the double-sided pad unit 5 to be used interchangeably.

[0044] Finally, the main body materials of the grooved bottom plate unit 1, the top limiting frame unit 2, the sliding limiting frame unit 3, the double-sided pressure bar unit 4, and the double-sided pad unit 5 are all engineering plastics or stainless steel. The lifting spring 6 is a commercially available metal spring. The grooved bottom plate unit 1 and the top limiting frame unit 2 are integrally formed.

[0045] The grooved base plate unit 1 includes a base plate 101, a track groove 102 disposed on the upper surface of the base plate 101 for sliding the sliding limiting frame unit 3, and a positioning groove 103 disposed on the upper surface of the base plate 101 for mounting the double-sided pad unit 5.

[0046] In this embodiment, the base plate 101 is rectangular in shape and can be fixed to the operating table or frame by means of mounting holes or bottom tightening bolts. The track groove 102 and the positioning groove 103 are both rectangular in shape, with two of the former and the latter located between the former.

[0047] The end of the track groove 102 near the top limiting frame unit 2 is the fixed end of the sliding limiting frame unit 3 in its working state. At this time, the double-sided pressure bar unit 4 on the sliding limiting frame unit 3 is vertically aligned with the double-sided pad unit 5.

[0048] Correspondingly, if the double-sided pressure bar unit 4 needs to be flipped up and down, it needs to slide away from the top limiting frame unit 2 and pull out the sliding limiting frame unit 3, so that the double-sided pressure bar unit 4 is first lifted up at the upper end of the sliding limiting frame unit 3, then rotated, and finally sleeved down.

[0049] It should be noted that the lifting spring 6 needs to be removed before the sliding limiting frame unit 3 is slidable and pulled out. Since the lifting spring 6 is only connected to the top limiting frame unit 2 and the double-sided pressure bar unit 4 by abutting each other, it can be removed laterally by relying on external force and without moving the double-sided pressure bar unit 4, causing it to retract significantly.

[0050] Similarly, after the double-sided pressure bar unit 4 switches between its upper and lower positions, the lifting spring 6, through this method, first contracts itself, then aligns with the top limiting frame unit 2 and the double-sided pressure bar unit 4, and finally releases and relaxes.

[0051] The top limiting frame unit 2 includes a vertical plate 201 disposed on the base plate 101, and a horizontal fixing plate 202 disposed on the vertical plate 201, the lower surface of which is used to install the lifting spring 6.

[0052] In this embodiment, the first shape of the top limiting frame unit 2 is a simple "inverted U-shape", that is, there are two vertical plates 201, and the two ends of the horizontal fixing plate 202 are respectively connected to the upper positions of the two vertical plates 201, so that the horizontal fixing plate 202 becomes the upper fixed mounting point of the lifting spring 6, so that the lifting spring 6 can only push the double-sided pressure bar unit 4 downward.

[0053] The top limiting frame unit 2 also includes a vertical plate 201 and a horizontal fixing plate 202 disposed between the vertical plate 201 and the horizontal fixing plate 202, and a horizontal plate 203 that blocks the horizontal protrusion of the protective welding gun c by the vertical plate 201 being laterally recessed into the horizontal fixing plate 202.

[0054] In this embodiment, the second shape of the top limiting frame unit 2 is an inverted U-shape with a lateral misalignment, that is:

[0055] The horizontal projection position of the horizontal fixing plate 202 does not coincide with the horizontal projection position of the vertical plate 201 along its length.

[0056] At this time, the top limiting frame unit 2, through the transverse protrusion plate 203, causes the transverse fixing plate 202, along with the entire double-sided pressure bar unit 4, double-sided pad plate unit 5, and the steel pipe welding position, to retract inward. For details on the function of this method, please refer to the appendix. Figure 9 ,Right now:

[0057] At this time, the welding torch c is located between the two vertical plates 201. After it is accidentally bumped and swings laterally, it only touches one of the vertical plates 201 and is unlikely to touch the welding operator. This is very safe and necessary.

[0058] The sliding limiting frame unit 3 includes a sliding block 301 disposed on the track groove 102, and a vertical rod 302 disposed on the sliding block 301, with its upper end surface height lower than the lower surface height of the transverse fixing plate 202, and used to sleeve the double-sided pressure rod unit 4.

[0059] In this embodiment, the sliding block 301 is in the shape of a cuboid, and the width of its cross-section is slightly smaller than the width of the track groove 102, with the difference controlled within 1 cm.

[0060] Furthermore, when the sliding block 301 abuts against the end face of the track groove 102 near the top limiting frame unit 2, the horizontal fixing plate 202 completely covers the vertical rod 302 vertically, and the lower surface of the former and the upper surface of the latter are relatively close to each other.

[0061] Correspondingly, the sliding limiting frame unit 3 includes two sliding blocks 301 and two vertical rods 302, which correspond one-to-one to form two roughly L-shaped frames that slide synchronously.

[0062] On the other hand, the elastic sheet 303 can also be provided on the upper surface of the vertical rod 302, so that the elastic sheet 303 made of ordinary rubber frictionally clamps the lower surface of the horizontal fixing plate 202, thereby preventing the sliding limiting frame unit 3 from spontaneously and accidentally sliding away from the top limiting frame unit 2.

[0063] The double-sided pressure bar unit 4 includes a horizontal bar 401, an end hole 402 on the horizontal bar 401 for passing through the vertical bar 302, an arc-shaped slot 403 and a rectangular slot 404 arranged symmetrically on the horizontal bar 401 and used selectively, and a limiting bar 405 on the horizontal bar 401 for fitting and installing the lifting spring 6.

[0064] In this embodiment, the horizontal rod 401 is a round rod or a square rod, and the end hole 402 is a vertical opening. When the double-sided pressure rod unit 4 is in use, one of the arc-shaped slot 403 and the rectangular slot 404 faces downwards as the working slot, while the other faces upwards as the idle slot.

[0065] Furthermore, along the length of the transverse rod 401, the arc-shaped slot 403 and the rectangular slot 404 are staggered to avoid significantly reducing the structural strength of the transverse rod 401.

[0066] The limiting rod 405 serves to sleeve and mount the lifting spring 6, making it less prone to twisting and separation from the transverse rod 401. Accordingly, there are four limiting rods 405 in total, arranged in pairs at both ends of the transverse rod 401, corresponding to two lifting springs 6. Of the four limiting rods 405, the upper two are in the working state, and the lower two are in the idle state.

[0067] Therefore, on the transverse rod 401, the arc-shaped slot 403 and the rectangular slot 404 are centrally located, the limiting rod 405 is relatively close to the side, and the end hole 402 is even further to the side than the limiting rod 405.

[0068] The double-sided pressure bar unit 4 also includes a side protrusion plate 406 disposed on the transverse bar 401 and used to lift the transverse bar 401 upward.

[0069] In this embodiment, the side protrusion plate 406 is the force application position where the transverse rod 401 can be lifted as needed. It is connected to a cylinder, or it can be lifted manually by the operator.

[0070] There are two side protrusions 406. Regardless of whether the arc-shaped slot 403 or the rectangular slot 404 is used downwards, the two side protrusions 406 are always located on both sides of the horizontal bar 401, making the lifting and lowering of the horizontal bar 401 more convenient and practical.

[0071] The double-sided pad unit 5 includes a flat plate 501 disposed on the positioning groove 103, and an arc-shaped bottom groove 502 and a rectangular bottom groove 503 respectively disposed on two symmetrical sides of the flat plate 501.

[0072] In this embodiment, the flat plate 501 is rectangular in shape, and it is inserted into the positioning groove 103 with the highest possible precision to avoid unnecessary lateral movement of the flat plate 501.

[0073] The arc-shaped bottom groove 502 is aligned with the arc-shaped slot 403 and together they are used to clamp the round tube a. The rectangular bottom groove 503 is aligned with the rectangular slot 404 and together they are used to clamp the square tube b. In the welding production of steel furniture, for example, when changing from round tube a to square tube b, the flat plate 501 needs to be removed from the positioning groove 103 first, then flipped so that the rectangular bottom groove 503 is facing upwards, and finally inserted into the positioning groove 103.

[0074] It should be noted that when the auxiliary equipment is idle, the horizontal bar 401 or the lower limiting bar 405 directly presses against the upper surface of the plate 501. Therefore, when the plate 501 is flipped, the horizontal bar 401 needs to be temporarily lifted upwards, or the sliding limiting frame unit 3 and the double-sided pressure bar unit 4 need to be pulled outwards in advance.

[0075] The double-sided pad unit 5 also includes elastic pads 504 respectively disposed on two symmetrical sides of the flat plate 501 and used to support the limiting rod 405.

[0076] In this embodiment, elastic pads 504 are provided on both main surfaces of the plate 501. The latter are made of ordinary rubber and are used to support and buffer the limiting rod 405 to prevent the relatively hard limiting rod 405 from directly impacting the equally hard transverse rod 401.

[0077] In addition, the plate 501 is provided with a groove for installing the elastic pad 504 so that it does not protrude and the elastic pad 504 does not affect the stability of the plate 501 on the positioning groove 103.

[0078] The top limiting frame unit 2 also includes a fixing rod 204 disposed on the lower surface of the transverse fixing plate 202 and used to sleeve and install the lifting spring 6.

[0079] In this embodiment, the function of the fixing rod 204 is the same as that of the limiting rod 405, both of which are used to stably install the lifting spring 6 and prevent the lifting spring 6 from falling off or twisting significantly.

[0080] In addition, the lower surface of the horizontal fixing plate 202 is provided with the positioning groove 205, which is a side-opening groove. While the sliding block 301 abuts against the end of the track groove 102, the vertical rod 302 also abuts against the inner end of the positioning groove 205, thereby making the sliding limit frame unit 3 slide into position sufficiently accurate.

[0081] At this time, if the elastic piece 303 is provided, it will also abut against the positioning groove 205. The specific shape of the positioning groove 205 is a rectangle near the opening side, plus a semi-circle near the inner side, the latter used to abut against the vertical rod 302.

[0082] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. An auxiliary device for welding production of steel furniture, characterized in that: The structure includes a grooved bottom plate unit (1), a top limiting frame unit (2) disposed on the upper surface of the grooved bottom plate unit (1), a sliding limiting frame unit (3) inserted into the grooved bottom plate unit (1), a double-sided pressure bar unit (4) sleeved on the sliding limiting frame unit (3) and used to press down and fix the round tube (a) or square tube (b), a double-sided pad unit (5) disposed on the grooved bottom plate unit (1) and used to support and fix the round tube (a) or square tube (b), and a lifting spring (6) disposed on the top limiting frame unit (2) and used to press down the double-sided pressure bar unit (4).

2. The auxiliary equipment for welding production of steel furniture according to claim 1, characterized in that: The grooved base plate unit (1) includes a base plate (101), a track groove (102) disposed on the upper surface of the base plate (101) and used for sliding the sliding limit frame unit (3), and a positioning groove (103) disposed on the upper surface of the base plate (101) and used for installing the double-sided pad unit (5).

3. The auxiliary equipment for welding production of steel furniture according to claim 2, characterized in that: The top limiting frame unit (2) includes a vertical plate (201) disposed on the base plate (101) and a horizontal fixing plate (202) disposed on the vertical plate (201) and whose lower surface is used to install the lifting spring (6).

4. The auxiliary equipment for welding production of steel furniture according to claim 3, characterized in that: The top limiting frame unit (2) also includes a vertical plate (201) disposed between the vertical plate (201) and the horizontal fixing plate (202), and the vertical plate (201) blocks the horizontal protrusion (203) of the protective welding gun (c) by horizontally retracting the horizontal fixing plate (202).

5. An auxiliary equipment for welding production of steel furniture according to claim 3, characterized in that: The sliding limit frame unit (3) includes a sliding block (301) disposed on the track groove (102) and a vertical rod (302) disposed on the sliding block (301), the upper end face of which is lower than the lower surface of the horizontal fixing plate (202) and used to sleeve the double-sided pressure bar unit (4).

6. An auxiliary device for welding production of steel furniture according to claim 5, characterized in that: The double-sided pressure bar unit (4) includes a horizontal bar (401), an end hole (402) disposed on the horizontal bar (401) and used to pass through the vertical bar (302), an arc-shaped slot (403) and a rectangular slot (404) disposed on the horizontal bar (401) in a centrally symmetrical manner and used selectively, and a limiting bar (405) disposed on the horizontal bar (401) and used to fit and install the lifting spring (6).

7. An auxiliary device for welding production of steel furniture according to claim 6, characterized in that: The double-sided pressure bar unit (4) also includes a side protrusion plate (406) disposed on the transverse bar (401) and used to lift the transverse bar (401) upward.

8. An auxiliary device for welding production of steel furniture according to claim 6, characterized in that: The double-sided pad unit (5) includes a flat plate (501) disposed on the positioning groove (103), and an arc-shaped bottom groove (502) and a rectangular bottom groove (503) respectively disposed on two symmetrical sides of the flat plate (501).

9. An auxiliary device for welding production of steel furniture according to claim 8, characterized in that: The double-sided pad unit (5) also includes elastic pads (504) respectively disposed on two symmetrical sides of the flat plate (501) and used to support the limiting rod (405).

10. An auxiliary device for welding production of steel furniture according to claim 3, characterized in that: The top limiting frame unit (2) also includes a fixing rod (204) disposed on the lower surface of the transverse fixing plate (202) and used to sleeve the lifting spring (6).

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