Welding positioning device for table and chair leg assembly

Abstract

The utility model relates to a welding and positioning device for a table and chair leg assembly, which comprises a welding bottom plate, a transverse positioning and clamping device, lateral positioning and clamping devices, lateral clamping devices, a lower positioning and clamping device, an upper positioning and clamping device and a middle positioning device, wherein the transverse positioning and clamping device, the lateral positioning and clamping devices, the lateral clamping devices, the lower positioning and clamping device and the upper positioning and clamping device are symmetrically arranged on the welding bottom plate; a first welding groove and two second welding grooves are formed in the welding bottom plate; the transverse positioning and clamping device is used for positioning and clamping a transverse pipe of the supporting pipe; the lateral positioning and clamping device is used for positioning and clamping a long supporting pipe of the supporting pipe; the lateral clamping device is used for clamping a short supporting pipe of the supporting pipe; the lower positioning and clamping device is used for positioning the lower connecting seat and pressing the lower connecting seat at the end part of the short stay tube; the upper positioning and clamping device is used for positioning the upper connecting seat and pressing the upper connecting seat at the end part of the long stay tube; and the middle positioning device is used for positioning the reinforcing rod. According to the device, the table and chair leg assembly can be rapidly clamped, the positioning precision is high, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to a welding tool for tables and chairs, in particular to a welding positioning device for table and chair leg components. Background Art

[0002] like Figure 5 The table and chair leg assembly shown includes a support tube 91, an upper connecting seat 93, a lower connecting seat 92 and a reinforcing rod 94. The support tube 91 is J-shaped, including a short support tube 911, a transverse tube 912 and a long support tube 913 arranged in sequence. The length of the long support tube 913 is greater than the length of the short support tube 911. Two support tubes 91 are symmetrically arranged. The reinforcing rod 94 is welded between the two long support tubes 913. The end of the long support tube 913 is welded to the upper connecting seat 93. The upper connecting seat 93 is used to install the table board. The lower connecting seat 92 is welded to the end of the end support tube for installing the bench board. The table and chair leg assembly needs to be positioned by tooling during welding. At present, elbow clamps are mainly used for clamping. The position needs to be measured and positioned by a tape measure, resulting in low clamping efficiency and poor consistency of size after welding, and poor quality of the finished product. Utility Model Content

[0003] In order to solve the above problems of low clamping efficiency and poor dimensional consistency, the utility model provides a welding positioning device for table and chair leg assemblies, and the specific technical solution is as follows:

[0004] A welding and positioning device for a table and chair leg assembly, comprising: a welding base plate, provided with a first welding groove and a second welding groove; two transverse positioning and clamping devices, symmetrically arranged on the welding base plate, for positioning and clamping the transverse tube of the support tube; two lateral positioning and clamping devices, symmetrically arranged on the welding base plate and located on one side of the first welding groove, for positioning and clamping the long support tube of the support tube; two lateral clamping devices, symmetrically arranged on the welding base plate and located on one side of the second welding groove, for clamping the short support tube of the support tube; two lower positioning and clamping devices, symmetrically arranged on the welding base plate and located on the other side of the second welding groove, for positioning the lower connecting seat and pressing the end of the short support tube; two upper positioning and clamping devices, symmetrically arranged on the welding base plate and located on the other side of the first welding groove, for positioning the upper connecting seat and pressing the end of the long support tube; and an intermediate positioning device, arranged between the two lateral positioning and clamping devices, for positioning the reinforcing rod.

[0005] Preferably, the transverse positioning and clamping device includes: a transverse rotating clamping cylinder, which is arranged on the welding base plate; two transverse positioning seats, which are arranged on the welding base plate and are located on both sides of the transverse rotating clamping cylinder, and the top of the transverse positioning seat is provided with a transverse positioning groove, and the support tube is inserted into the transverse positioning groove, and the transverse rotating clamping cylinder presses the support tube into the transverse positioning groove.

[0006] Furthermore, the top of the transverse positioning groove is symmetrically provided with an introduction slope.

[0007] Preferably, the lateral positioning clamping device includes: a first rotary clamping cylinder, which is arranged on the welding base plate; a lateral positioning seat, which is arranged on the welding base plate and is located on one side of the first rotary clamping cylinder; a lateral positioning plate, which is arranged on one side of the lateral positioning seat; and a lateral clamping cylinder, which is arranged on the welding base plate and is arranged opposite to the lateral positioning plate.

[0008] Furthermore, two lateral positioning seats are provided and are respectively located on both sides of the first rotary clamping cylinder.

[0009] Preferably, the lateral clamping device comprises: a lateral pad, which is arranged on the welding base plate; and a second rotary clamping cylinder, which is arranged on one side of the lateral pad and is used to press the short support tube onto the lateral pad.

[0010] Preferably, the lower positioning clamping device includes: a lower positioning seat, which is arranged on the welding base plate; a lower positioning block, which is arranged at both ends of the lower positioning seat and located at both ends of the lower connecting seat; and a lower clamping cylinder, which is arranged on the welding base plate and located on one side of the lower positioning seat.

[0011] Preferably, the upper positioning clamping device includes: an upper positioning seat, symmetrically arranged on the welding base plate; an upper positioning block, arranged at one end of the upper positioning seat; an intermediate pad, arranged between the two upper positioning seats; and an upper positioning cylinder, arranged on the welding base plate and located on one side of the intermediate pad.

[0012] Preferably, the intermediate positioning device comprises: an intermediate positioning seat, which is arranged on the welding base plate; and a strong magnet, which is arranged on the top of the intermediate positioning seat and is arranged opposite to the reinforcing rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The welding positioning device of the table and chair leg assembly provided by the utility model can realize the rapid clamping of the table and chair leg assembly, and has high positioning accuracy, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this application;

[0016] Figure 2 is a front view of the present application;

[0017] Figure 3 It is a three-dimensional image of the present application with table and chair legs installed;

[0018] Figure 4 It is a front view of the application with table and chair legs installed;

[0019] Figure 5 It is a structural diagram of the table and chair leg assembly. DETAILED DESCRIPTION

[0020] The utility model is now further described with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown, a welding positioning device for a table and chair leg assembly includes a welding base plate 1, a transverse positioning clamping device 2 symmetrically arranged on the welding base plate 1, a lateral positioning clamping device 4, a lateral clamping device 3, a lower positioning clamping device 5, an upper positioning clamping device 6, and an intermediate positioning device 7 arranged between the two lateral positioning clamping devices 4. The welding base plate 1 is provided with a first welding groove 11 and two second welding grooves 12, and the second welding grooves 12 are symmetrically arranged at both ends of the welding base plate 1; the transverse positioning clamping device 2 is used to position and clamp the transverse tube 912 of the support tube 91; the lateral positioning clamping device 2 is used to position and clamp the transverse tube 912 of the support tube 91; the lateral positioning clamping device 3 ... The positioning clamping device 4 is also located on one side of the first welding groove 11, and is used to position and clamp the long support tube 913 of the support tube 91; the lateral clamping device 3 is located on one side of the second welding groove 12, and is used to clamp the short support tube 911 of the support tube 91; the lower positioning clamping device 5 is located on the other side of the second welding groove 12, and is used to position the lower connecting seat 92 and press it to the end of the short support tube 911; the upper positioning clamping device 6 is located on the other side of the first welding groove 11, and is used to position the upper connecting seat 93 and press it to the end of the long support tube 913; the intermediate positioning device 7 is used to position the reinforcing rod 94.

[0022] A plurality of weight-reducing grooves 13 are also provided on the welding bottom plate 1 .

[0023] The transverse positioning clamping device 2 includes a transverse rotating clamping cylinder 24 and a transverse positioning seat 21. The transverse rotating clamping cylinder 24 is fixed on the welding base plate 1 and is located on one side of the welding base plate 1; the transverse positioning seat 21 is fixed on the welding base plate 1 and is symmetrically located on both sides of the transverse rotating clamping cylinder 24. The top of the transverse positioning seat 21 is provided with a transverse positioning groove 23, and the support tube 91 is inserted into the transverse positioning groove 23. The transverse rotating clamping cylinder 24 presses the support tube 91 into the transverse positioning groove 23. The transverse positioning seats 21 are located on both sides of the transverse rotating clamping cylinder 24, which can make the transverse tube 912 more stably pressed and the force is evenly applied. In order to facilitate the insertion of the transverse tube 912, the top of the transverse positioning groove 23 is symmetrically provided with an introduction slope 22.

[0024] The lateral positioning clamping device 4 includes a first rotary clamping cylinder 44, a lateral positioning seat 41, a lateral positioning plate 42 and a lateral pressing cylinder 43. The first rotary clamping cylinder 44 is fixed on the welding base plate 1 and is located on one side of the first welding groove 11. The lateral positioning seat 41 is installed on the welding base plate 1 and is symmetrically located on both sides of the first rotary clamping cylinder 44. The lateral positioning seat 41 and the lateral positioning plate 42 are installed on one side of the lateral positioning seat 41, and the whole is L-shaped; the lateral pressing cylinder 43 is fixed on the welding base plate 1 and is arranged opposite to the lateral positioning plate 42.

[0025] The lateral clamping device 3 includes a lateral pad 31 and a second rotary clamping cylinder 32, both of which are fixed on the welding base plate 1. The lateral pad 31 is fixed on the welding base plate 1 and is located on one side of the second welding groove 12. The second rotary clamping cylinder 32 is located on one side of the lateral pad 31 and is used to press the short support tube 911 onto the lateral pad 31.

[0026] The lower positioning clamping device 5 includes a lower positioning seat 51, a lower positioning block 52 and a lower clamping cylinder 53. The lower positioning seat 51 and the lower clamping cylinder 53 are both fixed on the welding base plate 1, and the lower positioning seat 51 is located on the other side of the second welding groove 12. The lower positioning block 52 is installed at both ends of the top of the lower positioning seat 51 for positioning the outside of the lower connecting seat 92. The lower clamping cylinder 53 is arranged opposite to the lower positioning seat 51.

[0027] The upper positioning clamping device 6 includes an upper positioning seat 61, an intermediate pad 63 and an upper positioning cylinder 64, all of which are fixed on the welding base plate 1. The upper positioning seat 61 is symmetrically arranged and located on the other side of the first welding groove 11. An upper positioning block 62 is installed at one end of the top of the upper positioning seat 61. The intermediate pad 63 is located between the two upper positioning seats 61. Two upper positioning cylinders 64 are provided and are located at both ends of the intermediate pad 63.

[0028] The intermediate positioning device 7 includes an intermediate positioning seat 71 and a strong magnet 72. The intermediate positioning seat 71 is fixed on the welding base plate 1. Two positioning inclined surfaces 711 are symmetrically provided on the top of the intermediate positioning seat 71. The positioning inclined surfaces 711 match the reinforcing rod 94 made of angle iron. The strong magnet 72 is installed on the positioning inclined surfaces 711 to fix the reinforcing rod 94.

[0029] When clamping, the two support tubes 91 are symmetrically installed, the transverse tube 912 is inserted into the transverse positioning groove 23 of the transverse positioning seat 21, and the side of the long support tube 913 is against the lateral positioning plate 42, and then the transverse rotating clamping cylinder 24, the first rotating clamping cylinder 44, the lateral pressing cylinder 43 and the second rotating clamping cylinder 32 are started, and then the upper connecting seat 93 and the lower connecting seat 92 are placed on the upper positioning seat 61 and the lower positioning seat 51 respectively, and then the upper positioning cylinder 64 and the lower pressing cylinder 53 are started, and the upper connecting seat 93 is pressed against the end of the long support tube 913, and the lower connecting seat 92 is pressed against the end of the short support tube 911, and then the reinforcing rod 94 is inserted into the middle positioning seat 71, and the two ends of the reinforcing rod 94 are against the two long support tubes 913, and finally welding is performed. After welding is completed, each cylinder can be released to remove the table and chair leg assembly, which greatly improves the efficiency of clamping, and has high positioning accuracy, ensures the consistency of welding, and has high welding quality.

[0030] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A welding positioning device for table and chair leg components, characterized in that: include: A welding base plate (1) is provided with a first welding groove (11) and a second welding groove (12); Two transverse positioning and clamping devices (2) are symmetrically arranged on the welding base plate (1) and are used to position and clamp the transverse tube (912) of the support tube (91); Two lateral positioning and clamping devices (4) are symmetrically arranged on the welding base plate (1) and located on one side of the first welding groove (11), and are used to position and clamp the long support tube (913) of the support tube (91); Two lateral clamping devices (3) are symmetrically arranged on the welding base plate (1) and located on one side of the second welding groove (12), and are used to clamp the short support tube (911) of the support tube (91); Two lower positioning clamping devices (5) are symmetrically arranged on the welding base plate (1) and located on the other side of the second welding groove (12), and are used to position the lower connecting seat (92) and press it against the end of the short support tube (911); Two upper positioning clamping devices (6) are symmetrically arranged on the welding base plate (1) and located on the other side of the first welding groove (11), and are used to position the upper connecting seat (93) and press it against the end of the long support tube (913); and The intermediate positioning device (7) is arranged between the two lateral positioning clamping devices (4) and is used for positioning the reinforcing rod (94).

2. A welding positioning device for table and chair leg assemblies according to claim 1, characterized in that: The transverse positioning clamping device (2) comprises: A transversely rotating clamping cylinder (24) is arranged on the welding base plate (1); Two transverse positioning seats (21) are arranged on the welding base plate (1) and are located on both sides of the transverse rotating clamping cylinder (24). A transverse positioning groove (23) is arranged on the top of the transverse positioning seat (21). The support tube (91) is inserted into the transverse positioning groove (23). The transverse rotating clamping cylinder (24) presses the support tube (91) into the transverse positioning groove (23).

3. A welding positioning device for table and chair leg assemblies according to claim 2, characterized in that: The top of the transverse positioning groove (23) is symmetrically provided with an introduction inclined surface (22).

4. The welding positioning device for table and chair leg components according to claim 1, characterized in that: The lateral positioning clamping device (4) comprises: A first rotary clamping cylinder (44) is arranged on the welding base plate (1); A lateral positioning seat (41) is provided on the welding base plate (1) and is located on one side of the first rotary clamping cylinder (44); A lateral positioning plate (42) is disposed on one side of the lateral positioning seat (41); and The lateral pressing cylinder (43) is arranged on the welding base plate (1) and is arranged opposite to the lateral positioning plate (42).

5. The welding positioning device for table and chair leg components according to claim 4, characterized in that: Two lateral positioning seats (41) are provided and are respectively located on both sides of the first rotary clamping cylinder (44).

6. The welding positioning device for table and chair leg components according to claim 1, characterized in that: The lateral clamping device (3) comprises: A lateral pad (31) is provided on the welding base plate (1); and The second rotary clamping cylinder (32) is arranged on one side of the lateral cushion block (31) and is used to press the short support tube (911) onto the lateral cushion block (31).

7. The welding positioning device for table and chair leg components according to claim 1, characterized in that: The lower positioning clamping device (5) comprises: A lower positioning seat (51) is arranged on the welding base plate (1); Lower positioning blocks (52) are provided at two ends of the lower positioning seat (51) and are located at two ends of the lower connecting seat (92); and The lower pressing cylinder (53) is arranged on the welding base plate (1) and is located on one side of the lower positioning seat (51).

8. The welding positioning device for table and chair leg components according to claim 1, characterized in that: The upper positioning clamping device (6) comprises: An upper positioning seat (61) is symmetrically arranged on the welding base plate (1); An upper positioning block (62) is arranged at one end of the upper positioning seat (61); An intermediate cushion block (63) is disposed between the two upper positioning seats (61); and The upper positioning cylinder (64) is arranged on the welding base plate (1) and is located on one side of the middle cushion block (63).

9. The welding positioning device for table and chair leg components according to claim 1, characterized in that: The intermediate positioning device (7) comprises: An intermediate positioning seat (71) is provided on the welding base plate (1); and A strong magnet (72) is disposed on the top of the intermediate positioning seat (71) and is arranged opposite to the reinforcing rod (94).

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