Chair frame welding tool

Abstract

The utility model belongs to the field of seat machining, and discloses a seat frame welding tool which comprises a base, a cross rod positioning clamp, two first inclined rod positioning clamps and two second inclined rod positioning clamps are arranged on the base, the two first inclined rod positioning clamps are located on the left side and the right side of the cross rod positioning clamp, and the two second inclined rod positioning clamps are located on the left side and the right side of the cross rod positioning clamp. The two second inclined rod positioning clamps are located on the outer sides of the two first inclined rod positioning clamps correspondingly. The transverse rod, the first inclined rods and the second inclined rods are located and clamped through the transverse rod locating clamp, the two first inclined rod locating clamps and the two second inclined rod locating clamps respectively, welding of the chair frame can be conveniently completed at a time, convenience and high efficiency are achieved, and the welding effect is good.

Description

Technical Field

[0001] This utility model relates to the field of chair frames, specifically a chair frame welding fixture. Background Technology

[0002] The seat frame structure is as follows Figure 1 As shown, the device includes a horizontal bar with first diagonal bars welded to both ends. The first diagonal bars are then welded to second diagonal bars. Currently, the horizontal bar, the first diagonal bars, and the second diagonal bars are generally welded manually. The lack of tooling for positioning the horizontal bar, the first diagonal bars, and the second diagonal bars results in low welding efficiency and poor performance. Utility Model Content

[0003] The purpose of this utility model is to provide a chair frame welding fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A chair frame welding fixture includes a base, on which a crossbar positioning fixture, two first inclined bar positioning fixtures and two second inclined bar positioning fixtures are provided. The two first inclined bar positioning fixtures are located on the left and right sides of the crossbar positioning fixture, and the two second inclined bar positioning fixtures are located on the outside of the two first inclined bar positioning fixtures respectively.

[0006] The crossbar positioning fixture includes a crossbar positioning seat for horizontally positioning the crossbar and a crossbar clamping device for clamping the crossbar.

[0007] The first inclined rod positioning fixture includes a first inclined rod positioning seat for tilting and positioning the first inclined rod and a first inclined rod clamping device for clamping the first inclined rod;

[0008] The second inclined rod positioning fixture includes a second inclined rod positioning seat for tilting and positioning the second inclined rod and a second inclined rod clamping device for clamping the second inclined rod. The first inclined rod positioning fixture and the second inclined rod positioning fixture make the first inclined rod and the second inclined rod on the same side intersect.

[0009] Furthermore, the crossbar positioning seat is provided with a crossbar positioning port for cooperating with the crossbar.

[0010] Furthermore, the crossbar positioning seat is provided with a limiting member for abutting against the front side of the crossbar.

[0011] Furthermore, the first inclined rod positioning seat is provided with a first inclined rod positioning port for cooperating with the first inclined rod and a first inclined rod support part for supporting the bottom of the first inclined rod.

[0012] Furthermore, the second inclined rod positioning seat is provided with a second inclined rod positioning port for cooperating with the second inclined rod and a second inclined rod support part for supporting the bottom of the second inclined rod.

[0013] Furthermore, the crossbar clamping device includes a crossbar clamping component and a crossbar telescopic mechanism for driving the crossbar clamping component to move.

[0014] Furthermore, the first inclined bar clamping device includes a first inclined bar clamping member and a first inclined bar telescopic mechanism for driving the first inclined bar clamping member to move.

[0015] Furthermore, the second inclined bar clamping device includes a second inclined bar clamping member and a second inclined bar telescopic mechanism for driving the movement of the second inclined bar clamping member.

[0016] Furthermore, it also includes a slide rail mechanism and a transverse drive mechanism. The first inclined rod positioning fixture is slidably mounted on the base in the left-right direction via the slide rail mechanism, and the transverse drive mechanism drives the first inclined rod positioning fixture to move in the left-right direction on the base.

[0017] Furthermore, the lateral movement drive mechanism is a cylinder, and there are two lateral movement drive mechanisms, which are respectively connected to the first inclined rod positioning seats of the two first inclined rod positioning fixtures.

[0018] Compared with the prior art, the beneficial effects of this utility model are: this utility model uses a crossbar positioning clamp, two first diagonal bar positioning clamps and two second diagonal bar positioning clamps to position and clamp the crossbar, the first diagonal bar and the second diagonal bar respectively, which facilitates the one-time completion of the clamping and welding of the chair frame, is convenient and efficient, and has a good welding effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the chair frame structure.

[0020] Figure 2 This is one of the structural schematic diagrams of this utility model.

[0021] Figure 3 This is the second schematic diagram of the structure of this utility model.

[0022] In the figure: second diagonal bar a, first diagonal bar b, crossbar c, base 1, crossbar positioning seat 2, crossbar positioning port 200, limiting member 201, crossbar clamping member 3, crossbar telescopic mechanism 4, first diagonal bar positioning seat 5, first diagonal bar positioning port 500, first diagonal bar support part 501, first diagonal bar clamping member 6, first diagonal bar telescopic mechanism 7, second diagonal bar positioning seat 8, second diagonal bar positioning port 800, second diagonal bar support part 801, second diagonal bar clamping member 9, second diagonal bar telescopic mechanism 10, slide rail mechanism 11, transverse drive mechanism 12. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 2 and Figure 3 A chair frame welding fixture includes a base 1, on which a crossbar positioning fixture, two first inclined bar positioning fixtures, and two second inclined bar positioning fixtures are mounted. The two first inclined bar positioning fixtures are located on the left and right sides of the crossbar positioning fixture, and the two second inclined bar positioning fixtures are located on the outer sides of the two first inclined bar positioning fixtures. The crossbar positioning fixture includes a crossbar positioning seat 2 for horizontally positioning the crossbar c and a crossbar clamping device for clamping the crossbar c. The first inclined bar positioning fixture includes a first inclined bar positioning seat 5 for tilting the first inclined bar b and a first inclined bar clamping device for clamping the first inclined bar b. The second inclined bar positioning fixture includes a second inclined bar positioning seat 8 for tilting the second inclined bar a and a second inclined bar clamping device for clamping the second inclined bar a. The first and second inclined bar positioning fixtures cause the first inclined bar b and the second inclined bar a on the same side to intersect.

[0025] It is understood that in the above technical solution, the present invention uses a crossbar positioning clamp, two first diagonal bar positioning clamps and two second diagonal bar positioning clamps to position and clamp the crossbar c, the first diagonal bar b and the second diagonal bar a respectively, which facilitates the welding of the chair frame in one go, is convenient and efficient and has a good welding effect.

[0026] Continue reading Figure 1 and Figure 2 In one embodiment of this utility model, two crossbar positioning ports 200 for cooperating with the crossbar c are provided at intervals on the crossbar positioning seat 2. A limiting member 201 is provided on the crossbar positioning seat 2. The limiting member 201 is a block structure and is located on the front side of the middle of the two crossbar positioning ports 200. The crossbar c is supported and placed on the two crossbar positioning ports 200, and the front side of the crossbar c abuts against the limiting member 201.

[0027] Continue reading Figure 2 and Figure 3 In one embodiment of this utility model, the crossbar pressing device includes a crossbar pressing member 3 and a crossbar telescopic mechanism 4 for driving the crossbar pressing member 3 to move. The crossbar telescopic mechanism 4 is preferably a cylinder.

[0028] Continue reading Figure 2 and Figure 3In one embodiment of the present invention, the first inclined rod positioning seat 5 is provided with three first inclined rod positioning ports 500 for cooperating with the first inclined rod b and a first inclined rod support portion 501 for supporting the bottom of the first inclined rod b. The three first inclined rod positioning ports 500 are connected to form an oblique line or an approximate oblique line. The position of the first inclined rod support portion 501 is lower than the three first inclined rod positioning ports 500.

[0029] Continue reading Figure 2 and Figure 3 In one embodiment of the present invention, the first inclined rod pressing device includes a first inclined rod pressing member 6 and a first inclined rod telescopic mechanism 7 for driving the first inclined rod pressing member 6 to move. The first inclined rod telescopic mechanism 7 is preferably a cylinder.

[0030] Continue reading Figure 2 and Figure 3 In one embodiment of the present invention, the second inclined rod positioning seat 8 is provided with two second inclined rod positioning ports 800 for cooperating with the second inclined rod a and a second inclined rod support portion 801 for supporting the bottom of the second inclined rod a. The two second inclined rod positioning ports 800 are connected to form an oblique line, which intersects with the oblique line formed by the first inclined rod positioning ports 500. The position of the second inclined rod support portion 801 is lower than the two second inclined rod positioning ports 800.

[0031] Continue reading Figure 2 and Figure 3 In one embodiment of the present invention, the second inclined rod pressing device includes a second inclined rod pressing member 9 and a second inclined rod telescopic mechanism 10 for driving the second inclined rod pressing member 9 to move. The second inclined rod telescopic mechanism 10 is preferably a cylinder.

[0032] Furthermore, the crossbar clamping device, the first diagonal bar clamping device, and the second diagonal bar clamping device can directly use conventional clamping cylinders.

[0033] Continue reading Figure 2 and Figure 3 In one embodiment of the present invention, the present invention further includes a slide rail mechanism 11 and a transverse drive mechanism 12. The first inclined rod positioning clamp is slidably mounted on the base 1 in the left-right direction through the slide rail mechanism 11, and the transverse drive mechanism 12 drives the first inclined rod positioning clamp to move in the left-right direction on the base 1.

[0034] Further reading Figure 2 and Figure 3 In one embodiment of this utility model, the transverse drive mechanism 12 is a cylinder. There are two cylinders. The two cylinders are respectively fixedly connected to the first inclined rod positioning seat 5 of the two first inclined rod positioning fixtures. The output shafts of the two cylinders are fixedly connected to the middle horizontal rod positioning seat 2. When the output shafts of the cylinders extend and retract, they drive the corresponding first inclined rod positioning seat 5 to slide left and right on the base 1.

[0035] The working process of this utility model:

[0036] First, place the upper ends of the two first diagonal bars b onto the two ends of the crossbar c. Then, place the two first diagonal bars b and the crossbar c together into the chair frame welding fixture. The first diagonal bar positioning fixture clamps the first diagonal bar b, and the crossbar positioning fixture clamps the crossbar c.

[0037] In the second step, the transverse drive mechanism 12 drives the first inclined rod positioning fixture to move inward on the base 1, so that the distance between the two first inclined rods b is reduced, and more of the two ends of the cross rod c are exposed, so that the welding gun can weld the connection between the cross rod c and the second inclined rod a (the distance between the first inclined rod b and the second inclined rod a is too close, and the welding gun has no space to weld the connection between the cross rod c and the second inclined rod a).

[0038] The third step is to clamp the two second diagonal bars a onto the two second diagonal bar positioning fixtures respectively, so that the second diagonal bar a is in contact with the end of the cross bar c.

[0039] The fourth step is to weld the connection between the second diagonal bar a and the horizontal bar c;

[0040] Fifth step: After the second diagonal bar a is welded, the transverse drive mechanism 12 drives the first diagonal bar positioning fixture to move outward on the base 1, so that the distance between the two first diagonal bars b increases and the first diagonal bar b is close to the second diagonal bar a on the same side.

[0041] The sixth step is to weld the connection between the first diagonal bar b and the horizontal bar c. After welding, the finished chair frame is obtained.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chair frame welding fixture, characterized in that, Includes a base (1), on which a crossbar positioning clamp, two first inclined bar positioning clamps and two second inclined bar positioning clamps are provided. The two first inclined bar positioning clamps are located on the left and right sides of the crossbar positioning clamp, and the two second inclined bar positioning clamps are located on the outside of the two first inclined bar positioning clamps respectively. The crossbar positioning fixture includes a crossbar positioning seat (2) for horizontally positioning the crossbar (c) and a crossbar clamping device for clamping the crossbar (c); The first inclined rod positioning fixture includes a first inclined rod positioning seat (5) for tilting and positioning the first inclined rod (b) and a first inclined rod clamping device for clamping the first inclined rod (b); The second inclined rod positioning fixture includes a second inclined rod positioning seat (8) for tilting and positioning the second inclined rod (a) and a second inclined rod clamping device for clamping the second inclined rod (a). The first inclined rod positioning fixture and the second inclined rod positioning fixture make the first inclined rod (b) and the second inclined rod (a) on the same side intersect.

2. The chair frame welding fixture according to claim 1, characterized in that, The crossbar positioning seat (2) is provided with a crossbar positioning port (200) for cooperating with the crossbar (c).

3. The chair frame welding fixture according to claim 1, characterized in that, The crossbar positioning seat (2) is provided with a limiting member (201) for abutting against the front side of the crossbar (c).

4. The chair frame welding fixture according to claim 1, characterized in that, The first inclined rod positioning seat (5) is provided with a first inclined rod positioning port (500) for cooperating with the first inclined rod (b) and a first inclined rod support part (501) for supporting the bottom of the first inclined rod (b).

5. The chair frame welding fixture according to claim 1, characterized in that, The second inclined rod positioning seat (8) is provided with a second inclined rod positioning port (800) for cooperating with the second inclined rod (a) and a second inclined rod support part (801) for supporting the bottom of the second inclined rod (a).

6. The chair frame welding fixture according to claim 1, characterized in that, The crossbar clamping device includes a crossbar clamping component (3) and a crossbar telescopic mechanism (4) that drives the crossbar clamping component (3) to move.

7. The chair frame welding fixture according to claim 1, characterized in that, The first inclined bar clamping device includes a first inclined bar clamping member (6) and a first inclined bar telescopic mechanism (7) for driving the first inclined bar clamping member (6) to move.

8. The chair frame welding fixture according to claim 1, characterized in that, The second inclined bar clamping device includes a second inclined bar clamping member (9) and a second inclined bar telescopic mechanism (10) for driving the second inclined bar clamping member (9) to move.

9. A chair frame welding fixture according to claim 1, characterized in that, It also includes a slide rail mechanism (11) and a transverse drive mechanism (12). The first inclined rod positioning fixture is slidably mounted on the base (1) in the left and right direction via the slide rail mechanism (11). The transverse drive mechanism (12) drives the first inclined rod positioning fixture to move in the left and right direction on the base (1).

10. A chair frame welding fixture according to claim 9, characterized in that, The transverse drive mechanism (12) is a cylinder. There are two transverse drive mechanisms (12), and the two transverse drive mechanisms (12) are respectively connected to the first inclined rod positioning seats (5) of the two first inclined rod positioning fixtures.

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