Welding and positioning tool for metal supporting legs of table

Abstract

The utility model discloses a welding and positioning tool for metal supporting legs of a table, which belongs to the field of metal supporting leg positioning and comprises a lifting mechanism and a positioning mechanism, the lifting mechanism comprises a tool table, the lower end of the tool table is detachably connected with two U-shaped plates, the upper ends of the two U-shaped plates are provided with guide grooves, lifting rods are inserted into the guide grooves, and the positioning mechanism is connected with the lifting rods. A bottom plate is detachably mounted at the lower end of the lifting rod, a first pin hole is formed in the inner wall of one side of the guide groove, a plurality of second pin holes are formed in the surface of the lifting rod at equal intervals, pin rods are inserted into the first pin hole and one of the second pin holes, and two guide holes are formed in the upper end of the U-shaped plate; according to the positioning tool, the lifting mechanism is matched with the positioning mechanism, so that stable positioning operation can be conducted on metal supporting legs of different sizes, the universality of the positioning tool is improved, meanwhile, the height of the positioning tool can be adjusted through mutual matching of the structures, and the practicability of the positioning tool can be improved.

Description

Technical Field

[0001] This utility model relates to the field of metal leg positioning, specifically a welding and positioning fixture for metal legs of a table. Background Technology

[0002] When using a table, metal legs are needed to prevent wear and tear from contact with the ground. To facilitate welding of these metal legs, a positioning operation is required, necessitating the use of positioning fixtures. The "Welding Positioning Fixture for Metal Legs of a Table" disclosed in application number "CN202321197787.6" is an increasingly mature technology. It "achieves clamping and positioning between the metal leg components of the table before welding by setting up a base, clamp, first support component, second support component, limit support plate, and positioning component, facilitating direct welding by skilled workers and improving efficiency." While the positioning fixture boasts "high work efficiency," it also has the following drawbacks during use: Although the fixture, through its clamps and the first and second mounting components, does achieve a clamping and positioning effect, the clamp structure is simple and can only position metal legs of the same size, affecting the fixture's versatility. Therefore, it is necessary to provide a positioning fixture capable of positioning metal legs of different sizes to enhance its versatility. Furthermore, the fixture is not easily height-adjustable as needed; therefore, it is necessary to provide a positioning fixture that is height-adjustable and enhances practicality. Utility Model Content

[0003] This utility model provides a welding and positioning fixture for metal legs of a table, aiming to solve the problems of existing positioning fixtures being inconvenient for height adjustment and unable to clamp metal legs of different sizes.

[0004] To achieve the above objectives, this utility model provides a welding and positioning fixture for metal legs of a table, including a lifting mechanism and a positioning mechanism;

[0005] The lifting mechanism includes a tooling table, with two U-shaped plates detachably connected to the lower end of the tooling table. Each of the two U-shaped plates has a guide groove at its upper end, and a lifting rod is inserted into the guide groove. A base plate is detachably installed at the lower end of the lifting rod. A first pin hole is formed on one inner wall of the guide groove, and several second pin holes are equidistantly formed on the surface of the lifting rod. A pin is inserted into the first pin hole and one of the second pin holes. Two guide holes are formed at the upper end of the U-shaped plate, and two guide rods are detachably installed at the upper end of the base plate. Both guide rods are inserted into the guide holes.

[0006] The positioning mechanism includes a reciprocating screw and a crossbar mounted on the upper end of a tooling table. One end of the reciprocating screw is connected to a servo motor. Two moving plates are connected to the side surfaces of both the reciprocating screw and the crossbar. Two clamping plates are mounted on the upper end of the tooling table. A transverse plate is fixedly connected to the opposite back of the two clamping plates. A transverse groove is opened inside the transverse groove. A spring is detachably installed inside the transverse groove. One end of the spring is fixedly connected to a limit plate.

[0007] As a preferred embodiment of this utility model, the upper end of the tooling table has two sliding grooves, and both ends of the upper surface of the tooling table can be detachably installed with two seated bearings. Both ends of the reciprocating screw and the crossbar are inserted into the interior of the seated bearings.

[0008] As a preferred embodiment of this utility model, the lower end of the tooling table is fixedly connected with several support legs, and the upper end of the U-shaped plate is provided with two insertion slots, into which the support legs are inserted.

[0009] As a preferred embodiment of this utility model, the upper end of the base plate is provided with a positioning groove, and the lifting rod is inserted into the insertion groove.

[0010] As a preferred embodiment of this utility model, the lower end of the guide rod is fixedly connected to a limiting shaft, and the upper end of the base plate has two limiting holes, with the limiting shaft inserted into the limiting holes.

[0011] As a preferred embodiment of this utility model, the surface of the movable plate is provided with a slot, and one end of the limiting plate is fixedly connected to a locking block, which is engaged inside the slot.

[0012] In a preferred embodiment of this utility model, the lower end of the clamping plate is fixedly connected to two guide blocks, and both guide blocks are slidably connected inside the guide groove.

[0013] As a preferred embodiment of this utility model, a screw hole is provided inside the transverse groove, and a bolt is fixedly connected to the end of the spring away from the limiting plate, with the bolt threaded inside the screw hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When positioning metal legs of different sizes, the metal legs are first placed between two clamping plates on the upper part of the fixture table. Then, the servo motor is started to drive the reciprocating screw to rotate. With the help of the crossbar, the two moving plates, the limiting plate and the clamping plates can be controlled to move closer or further apart, so that the distance between the two clamping plates can be adjusted. This allows for the clamping of metal supports of different sizes. At the same time, as the two clamping plates clamp the metal legs, the spring tension and extension can have a compensation effect, further ensuring the positioning tightness. Compared with the positioning fixture in the existing technology "a metal leg welding positioning fixture for a table", this utility model can facilitate the clamping of metal legs of different sizes through the above structure, thus enhancing the versatility of the positioning fixture.

[0016] 2. When adjusting the height of the positioning fixture, simply control the lifting rod to rise and fall along the guide groove. Then, insert the pin into the first pin hole and the second pin holes at different heights. This allows the lifting rod to rise and fall along the guide groove, while the guide rod rises and falls along the guide hole, improving the stability of the lifting rod's movement. Compared to the positioning fixture in the existing technology "a metal leg welding positioning fixture for a table", this utility model, through the cooperation of the above structures, facilitates the adjustment of the height of the positioning fixture, thus enhancing its practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the tooling table structure of this utility model;

[0019] Figure 3 This is a structural disassembly diagram of the lifting mechanism of this utility model;

[0020] Figure 4 This is a structural disassembly diagram of the positioning mechanism of this utility model.

[0021] In the diagram: 100, Lifting mechanism; 101, Tooling table; 102, U-shaped plate; 103, Guide groove; 104, Lifting rod; 105, Base plate; 106, First pin hole; 107, Second pin hole; 108, Pin; 109, Guide hole; 110, Guide rod; 111, Slide groove; 112, Bearing with seat; 121, Support leg; 122, Insertion groove; 131, Positioning groove; 141, Limiting shaft; 142, Limiting hole;

[0022] 200. Positioning mechanism; 201. Reciprocating screw; 202. Crossbar; 203. Servo motor; 204. Moving plate; 205. Clamping plate; 206. Horizontal plate; 207. Horizontal groove; 208. Spring; 209. Limiting plate; 211. Slot; 212. Locking block; 221. Guide block; 231. Screw hole; 232. Bolt. 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 1 - Figure 4 This utility model provides a welding and positioning fixture for metal legs of a table, including a lifting mechanism 100 and a positioning mechanism 200;

[0025] The lifting mechanism 100 includes a tooling table 101. The lower end of the tooling table 101 is detachably connected to two U-shaped plates 102. The upper end of each of the two U-shaped plates 102 is provided with a guide groove 103. A lifting rod 104 is inserted into the guide groove 103. A base plate 105 is detachably installed at the lower end of the lifting rod 104. A first pin hole 106 is provided on one side of the inner wall of the guide groove 103. Several second pin holes 107 are equidistantly provided on the surface of the lifting rod 104. A pin 108 is inserted into the first pin hole 106 and one of the second pin holes 107. Two guide holes 109 are provided at the upper end of the U-shaped plate 102. Two guide rods 110 are detachably installed at the upper end of the base plate 105. Both guide rods 110 are inserted into the guide holes 109.

[0026] The positioning mechanism 200 includes a reciprocating screw 201 and a crossbar 202 mounted on the upper end of the tooling table 101. One end of the reciprocating screw 201 is connected to a servo motor 203. Two moving plates 204 are connected to the side surfaces of both the reciprocating screw 201 and the crossbar 202. Two clamping plates 205 are mounted on the upper end of the tooling table 101. A transverse plate 206 is fixedly connected to the opposite sides of the two clamping plates 205. A transverse groove 207 is opened inside the transverse groove 207. A spring 208 is detachably installed inside the transverse groove 207. One end of the spring 208 is fixedly connected to a limit plate 209.

[0027] In one specific embodiment, the lifting mechanism 100, in conjunction with the positioning mechanism 200, can not only stably position metal supports of different sizes, thereby enhancing the versatility of the positioning fixture, but also adjust the height of the positioning fixture through the cooperation of the above structures, thus enhancing its practicality. In use, the lifting rod 104 is first controlled to rise and fall along the guide groove 103. Then, the pin 108 is inserted into the first pin hole 106 and the second pin hole 107 at different heights on the surface of the lifting rod 104. This controls the lifting rod 104 to rise and fall along the guide groove 103, while the guide rod 110 rises and falls along the guide hole 109, thereby increasing the height of the lifting rod 104. The improved lifting stability enhances the practicality of the positioning fixture. When clamping metal legs of different sizes, the metal legs are first placed on the upper end of the fixture table 101. Then, the servo motor 203 is started to rotate the reciprocating screw 201. With the help of the crossbar 202, the two moving plates 204, along with the limiting plate 209 and the clamping plate 205, can be controlled to move closer or further apart. This allows for adjustment of the distance between the two clamping plates 205, enabling the clamping of metal legs of different sizes. As the two clamping plates 205 clamp the metal legs, the spring 208 expands and contracts under force, providing a compensation effect and ensuring positioning tightness and stability. Therefore, the versatility of the positioning fixture is enhanced.

[0028] Please see Figure 2 and Figure 3 The upper end of the tooling table 101 has two sliding grooves 111. Both ends of the upper surface of the tooling table 101 can be detachably installed with two seated bearings 112. Both ends of the reciprocating screw 201 and the crossbar 202 are inserted into the interior of the seated bearings 112.

[0029] In one specific embodiment, the mounted bearing 112 can improve the installation stability of the reciprocating screw 201 and the crossbar 202.

[0030] Please see Figure 2 and Figure 3 The lower end of the tooling table 101 is fixedly connected with several support legs 121, and the upper end of the U-shaped plate 102 is provided with two insertion slots 122, and the support legs 121 are inserted into the insertion slots 122.

[0031] In one specific embodiment, the outrigger 121 is inserted into the insertion slot 122, which can improve the ease of disassembly and replacement of the U-shaped plate 102.

[0032] Please see Figure 2 and Figure 3 The upper end of the base plate 105 is provided with a positioning groove 131, and the lifting rod 104 is inserted into the insertion groove 122.

[0033] In one specific embodiment, the positioning groove 131 facilitates the positioning and installation of the lifting rod 104, and the lifting rod 104 can be disassembled by removing it from the positioning groove 131.

[0034] Please see Figure 2 and Figure 3 The lower end of the guide rod 110 is fixedly connected to the limiting shaft 141, and the upper end of the base plate 105 has two limiting holes 142, with the limiting shaft 141 inserted into the limiting hole 142.

[0035] In one specific embodiment, the limiting shaft 141 is inserted into the limiting hole 142, which can facilitate the installation and removal of the limiting shaft 141.

[0036] Please see Figure 4 The surface of the movable plate 204 is provided with a slot 211, and one end of the limiting plate 209 is fixedly connected to a block 212, which is engaged inside the slot 211.

[0037] In one specific embodiment, the card block 212 is engaged inside the card slot 211, which facilitates the quick assembly and disassembly of the limiting plate 209.

[0038] Please see Figure 4 Two guide blocks 221 are fixedly connected to the lower end of the clamping plate 205, and both guide blocks 221 are slidably connected inside the guide groove 103.

[0039] In one specific embodiment, the guide block 221 is slidably connected inside the guide groove 103, which can improve the movement stability of the positioning fixture when the clamping plate 205 moves.

[0040] Please see Figure 4 The transverse groove 207 has a screw hole 231 inside. The end of the spring 208 away from the limiting plate 209 is fixedly connected to a bolt 232, which is threaded into the screw hole 231.

[0041] In one specific embodiment, the bolt 232 is threaded into the screw hole 231 to install the spring 208.

[0042] Working principle: In use, firstly, the lifting rod 104 is controlled to rise and fall along the guide groove 103. Then, the pin 108 is inserted into the first pin hole 106 and the second pin hole 107 at different heights on the surface of the lifting rod 104 to control the lifting rod 104 to rise and fall along the guide groove 103. The guide rod 110 rises and falls along the guide hole 109, which can improve the lifting stability of the lifting rod 104, thereby enhancing the practicality of the positioning fixture. When clamping metal legs of different sizes, the metal legs are first placed on the upper end of the fixture table 101. Then, the servo motor 203 is started to rotate the reciprocating screw 201. With the help of the crossbar 202, the two moving plates 204, along with the limiting plate 209 and the clamping plate 205, can be controlled to move closer or further apart. This allows for adjustment of the distance between the two clamping plates 205 to clamp metal feet of different sizes. As the two clamping plates 205 clamp the metal feet, the spring 208 expands and contracts under force to compensate for the impact, thus ensuring the positioning tightness and stability, and enhancing the versatility of the positioning fixture.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0044] 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 welding and positioning fixture for metal legs of a table, characterized in that, include: A lifting mechanism (100) includes a tooling table (101). Two U-shaped plates (102) are detachably connected to the lower end of the tooling table (101). Guide grooves (103) are provided at the upper ends of both U-shaped plates (102). A lifting rod (104) is inserted into the guide groove (103). A base plate (105) is detachably installed at the lower end of the lifting rod (104). A first pin is provided on one inner wall of the guide groove (103). The surface of the lifting rod (104) is provided with several second pin holes (107) at equal intervals. A pin (108) is inserted into the first pin hole (106) and one of the second pin holes (107). Two guide holes (109) are provided at the upper end of the U-shaped plate (102). Two guide rods (110) are detachably installed at the upper end of the base plate (105). Both guide rods (110) are inserted into the guide holes (109). The positioning mechanism (200) includes a reciprocating screw (201) and a crossbar (202) installed on the upper end of the tooling table (101). One end of the reciprocating screw (201) is connected to a servo motor (203). Two moving plates (204) are connected to the side surfaces of the reciprocating screw (201) and the crossbar (202). Two clamping plates (205) are installed on the upper end of the tooling table (101). A transverse plate (206) is fixedly connected to the opposite back of the two clamping plates (205). A transverse groove (207) is opened inside the transverse groove (207). A spring (208) is detachably installed inside the transverse groove (207). One end of the spring (208) is fixedly connected to a limit plate (209).

2. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The upper end of the tooling table (101) has two sliding grooves (111). Both ends of the upper surface of the tooling table (101) can be detachably installed with two seated bearings (112). Both ends of the reciprocating screw (201) and the crossbar (202) are inserted into the interior of the seated bearings (112).

3. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The lower end of the tooling table (101) is fixedly connected with several support legs (121), and the upper end of the U-shaped plate (102) is provided with two insertion slots (122), and the support legs (121) are inserted into the insertion slots (122).

4. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The upper end of the base plate (105) is provided with a positioning groove (131), and the lifting rod (104) is inserted into the insertion groove (122).

5. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The lower end of the guide rod (110) is fixedly connected to a limiting shaft (141), and the upper end of the base plate (105) has two limiting holes (142), with the limiting shaft (141) inserted into the limiting holes (142).

6. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The surface of the movable plate (204) is provided with a slot (211), and one end of the limiting plate (209) is fixedly connected to a block (212), which is engaged inside the slot (211).

7. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The lower end of the clamp (205) is fixedly connected to two guide blocks (221), and both guide blocks (221) are slidably connected inside the guide groove (103).

8. The welding and positioning fixture for metal legs of a table according to claim 1, characterized in that: The transverse groove (207) has a screw hole (231) inside. The end of the spring (208) away from the limiting plate (209) is fixedly connected to a bolt (232), and the bolt (232) is threaded into the screw hole (231).

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