Backrest upper elbow pipe welding positioning tool

Abstract

The utility model discloses a kind of backrest upper elbow pipe welding positioning tool of car, it is related to mechanical design and manufacturing technical field, the utility model includes bottom plate, the outer wall of bottom plate is fixedly connected with several installation plates, the inner wall of bottom plate is equipped with several positioning holes, the outer wall of the top of bottom plate is provided with positioning mechanism, the utility model passes through knob, when knob starts to rotate, it will drive threaded rod to rotate, when threaded rod starts to rotate, it will move downward, when threaded rod moves downward, it will contact fixed shaft, when spring is extruded, it will contract, with fixed shaft continues to move outward, one end will be entered into the clamping groove of the bottom plate, reaches the effect of quick positioning installation to installation plate two, reduce the equipment downtime caused by tool adjustment. Equipment can be more frequently put into production, improve the utilization of equipment, reduce the idle cost of equipment, to improve the production efficiency of enterprise.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical design and manufacturing technology, and in particular relates to a welding and positioning fixture for a bent pipe on an automobile backrest. Background Technology

[0002] According to the published patent CN220407753U, a welding positioning fixture for curved tubes on car backrests solves the problems of existing positioning fixtures requiring the selection of other models when welding and positioning curved tubes of different sizes or shapes, resulting in a narrow range of applications, increased processing costs, and low practicality. The fixture includes a base with several adjustment mechanisms at its top, and a limit mechanism at the top of each adjustment mechanism. A curved tube for the car backrest is positioned between these limit mechanisms. The adjustment mechanism includes a chassis, which is detachably connected to the base by bolts. A column is located at the top of the chassis, and a rotating rod is rotatably connected to the bottom of the column's side wall. A lifting rod is slidably connected vertically inside the column, with a limit mechanism at its top. A threaded rod is threaded inside the lifting rod, and its bottom is rotatably connected to the bottom of the column. A transmission mechanism is provided between the threaded rod and a bevel gear. This utility model can stably position curved tubes on car backrests of different sizes and shapes, with convenient and quick adjustment, a wider range of applications, and improved welding efficiency. However, it still has the following shortcomings:

[0003] When installing the chassis and base of the tooling, bolts are required for fixing. Bolts need to be tightened and loosened using tools. Especially when the tooling needs to be frequently disassembled and replaced, the installation and disassembly process is relatively time-consuming and labor-intensive, which will affect production efficiency. Therefore, we propose a welding and positioning tooling for bent pipes on car backrests. Utility Model Content

[0004] The purpose of this utility model is to provide a welding positioning fixture for bent pipes on a car backrest. Through the positioning mechanism and the adjustment mechanism, it solves the problem that bolts are needed to fix the chassis and base of the fixture during installation. Bolts need to be tightened and loosened with tools during installation. Especially when the fixture needs to be frequently disassembled and replaced, the installation and disassembly process is relatively time-consuming and labor-intensive, which will affect the production efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a welding and positioning fixture for bending pipes on a car backrest, including a base plate, a number of mounting plates fixedly connected to the outer wall of the base plate, a number of positioning holes opened on the inner wall of the base plate, and a positioning mechanism provided on the top outer wall of the base plate.

[0007] The positioning mechanism includes several mounting plates, the bottom of which is fixedly connected to the top outer wall of the base plate. Hollow shafts are slidably connected to the inner walls of the mounting plates. Several slots are provided on the inner wall of the base plate. Several limiting plates are fixedly connected to the inner walls of the mounting plates. Fixed shafts are slidably connected to the inner walls of the limiting plates. Springs are sleeved on the outer walls of the fixed shafts. Several sliding grooves are provided on the inner walls of the hollow shafts. The outer walls of the fixed shafts at the ends away from the springs are slidably connected to the sliding grooves.

[0008] Furthermore, the inner walls of several hollow shafts are threaded with threaded rods, and the outer walls of the ends of several threaded rods away from the fixed shaft are fixedly connected with knobs. An adjustment mechanism is provided on the top outer wall of the mounting plate two.

[0009] Furthermore, the adjustment mechanism includes several hollow columns, the top outer walls of the several hollow columns are fixedly connected to the top outer wall of the mounting plate two, the inner walls of the several hollow columns are slidably connected with rack plates, the inner walls of the several hollow columns are provided with grooves, and the outer walls of the several hollow columns are fixedly connected with protective shells.

[0010] Furthermore, the inner walls of several protective shells are rotatably connected to turntables, the outer walls of several turntables are fixedly connected to gears, and the outer walls of several gears are meshed with the outer walls of rack plates.

[0011] Furthermore, the inner walls of several of the protective shells are slidably connected to limit shafts, and the outer walls of several of the limit shafts are fitted with springs.

[0012] Furthermore, the outer walls of several of the limiting shafts are in contact with the inner walls of the gears, and the top outer walls of several of the rack plates are fixedly connected with fixing blocks.

[0013] Furthermore, each of the fixed blocks has a second sliding groove on its inner wall, and each of the second sliding grooves has a clamping plate slidably connected to its inner wall.

[0014] Furthermore, each of the outer walls of the clamps is rotatably connected to a lead screw, and the outer walls of the lead screws are engaged with the inner wall of the slide groove.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a knob. When the knob is turned, it drives a threaded rod to rotate, which then moves downwards. Upon contact with the fixed shaft, the fixed shaft is compressed, causing it to move laterally and compress a spring. As the fixed shaft continues to move outwards, one end enters a slot in the base plate, achieving rapid positioning and installation of the mounting plate. This reduces downtime caused by tooling adjustments. The equipment can be put into production more frequently, increasing equipment utilization and reducing idle costs, thereby improving the company's production efficiency.

[0017] 2. This utility model incorporates a limiting shaft. When one end of the limiting shaft is completely withdrawn from the gear, rotating the turntable causes the gear to rotate, which in turn moves the rack plate upwards. This upward movement of the rack plate then moves the fixing block upwards. At this point, the fixing block only needs to be adjusted to the appropriate height at one end of the bent tube. Then, the fixing block at the lower end of the bent tube is adjusted in the reverse direction. The bent tube is then placed into the fixing block, and the lead screw is rotated. As the lead screw rotates, the clamping plate moves forward through the second sliding groove. When it contacts the bent tube, it clamps and fixes it, achieving the positioning effect for bent tubes of different sizes and shapes, increasing the stability of the bent tube, preventing displacement, and improving welding efficiency.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the hollow shaft structure of this utility model;

[0023] Figure 4 This utility model Figure 3Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the fixing block structure of this utility model;

[0025] Figure 6 This utility model Figure 5 Enlarged view of section B in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base plate; 101. Mounting plate; 102. Positioning hole; 2. Positioning mechanism; 201. Mounting plate two; 202. Hollow shaft; 204. Slot; 205. Limiting plate; 206. Fixed shaft; 207. Spring; 208. Threaded rod; 209. Knob; 210. Slide groove; 3. Adjustment mechanism; 301. Hollow column; 302. Rack plate; 303. Protective shell; 304. Groove; 305. Turntable; 306. Limiting shaft; 307. Spring two; 308. Fixed block; 309. Slide groove two; 310. Clamping plate; 311. Lead screw; 312. Gear. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6As shown, this utility model is a welding positioning fixture for bent pipes on an automobile backrest, including a base plate 1. Several mounting plates 101 are fixedly connected to the outer wall of the base plate 1. Workers use the mounting plates 101 to fix the base plate 1 in a suitable position. Several positioning holes 102 are provided on the inner wall of the base plate 1. A positioning mechanism 2 is provided on the top outer wall of the base plate 1. The positioning mechanism 2 includes several mounting plates 201. The bottom of the mounting plates 201 is fixedly connected to the top outer wall of the base plate 1. Hollow shafts 202 are slidably connected to the inner walls of the mounting plates 201. Workers place the mounting plates 201 on the surface of the base plate 1 and then fix them using the hollow shafts 202. Several slots 204 are provided on the inner wall of the base plate 1. Several slots 204 are fixedly connected to the inner walls of the mounting plates 201. Each limiting plate 205 has a fixed shaft 206 slidably connected to its inner wall. The limiting plates 205 are used to limit the fixed shaft 206 to prevent it from falling during use. Each fixed shaft 206 has a spring 207 sleeved on its outer wall. Each hollow shaft 202 has a sliding groove 210 on its inner wall. The outer wall of each fixed shaft 206 away from the spring 207 is slidably connected to the sliding groove 210. The spring 207 is used to help the fixed shaft 206 to quickly reset after it moves outward. Each hollow shaft 202 has a threaded rod 208 threadedly connected to its inner wall. Each threaded rod 208 has a knob 209 fixedly connected to its outer wall away from the fixed shaft 206. Rotating the knob 209 drives the threaded rod 208 to rotate. An adjustment mechanism 3 is provided on the top outer wall of the mounting plate 201.

[0030] The adjusting mechanism 3 includes several hollow columns 301. The top outer walls of each hollow column 301 are fixedly connected to the top outer wall of the mounting plate 201. The mounting plate 201 is used to support and fix the hollow columns 301, thereby preventing them from falling during use. A rack plate 302 is slidably connected to the inner wall of each hollow column 301. A groove 304 is formed on the inner wall of each hollow column 301. A protective shell 303 is fixedly connected to the outer wall of each hollow column 301. The protective shell 303 is used to protect the parts on the hollow columns 301 and also allows the device to... The design is aesthetically pleasing. Several protective shells 303 have turntables 305 rotatably connected to their inner walls. Several turntables 305 have gears 312 fixedly connected to their outer walls. The rotation of the turntables 305 drives the gears 312 to rotate, which in turn drives the rack plate 302 to move up and down. The outer walls of several gears 312 mesh with the outer walls of the rack plate 302. Several protective shells 303 have limit shafts 306 slidably connected to their inner walls. The limit shafts 306 are used to limit and fix the gears 312. Several limit shafts 306 have springs 307 sleeved on their outer walls.

[0031] The outer walls of several limiting shafts 306 are in contact with the inner walls of gears 312. The top outer walls of several rack plates 302 are fixedly connected to fixing blocks 308. The inner walls of several fixing blocks 308 are provided with sliding grooves 309. The purpose of the sliding grooves is to facilitate the movement of subsequent parts. The inner walls of several sliding grooves 309 are slidably connected to clamping plates 310. The outer walls of several clamping plates 310 are rotatably connected to lead screws 311. The rotation of the lead screws 311 drives the clamping plates 310 to slide in the fixing blocks 308 through the sliding grooves 309. The outer walls of several lead screws 311 are meshed with the inner walls of the sliding grooves 309.

[0032] One specific application of this embodiment is:

[0033] When the operator needs to use the equipment, firstly, the base plate 1 is fixedly installed in a suitable position using the mounting plate 101. Then, the mounting plate 201 is positioned and installed according to the shape and size of the bent pipe. Next, the hollow shaft 202 is inserted into the mounting plate 201 and extends into the interior of the base plate 1. Then, the knob 209 is turned. When the knob 209 starts to turn, it drives the threaded rod 208 to rotate. When the threaded rod 208 starts to rotate, it moves downwards. When the threaded rod 208 moves downwards, it contacts the fixed shaft 206. When the threaded rod 208 contacts the fixed shaft 206, the fixed shaft 206 is compressed. When the fixed shaft 206 is compressed, it moves to both sides simultaneously. During this movement, it compresses the spring 207. When the spring 207 is compressed, it contracts. As the fixed shaft 206 continues to move outwards, one end of 206 enters the slot 204 opened in the base plate 1. At this time, the mounting plate 201 is... Fixedly installed on the base plate 1, when the heights of the two ends of the bend are different, first pull the limiting shaft 306 outward. When the limiting shaft 306 is under force, it will move outward, and during the movement, it will squeeze the second spring 307. When one end of the limiting shaft 306 is completely pulled out from the gear 312, rotate the turntable 305. When the turntable 305 starts to rotate, it will drive the gear 312 to rotate. When the gear 312 starts to rotate, it will drive the rack plate 302 to move upward. When the rack plate 302 moves upward, it will drive the fixing block 308 to move upward. At this time, it is only necessary to adjust the fixing block 308 to the appropriate height of one end of the bend. Then, the fixing block 308 located at the lower end of the bend can be adjusted in the opposite direction of the above operation. Then, place the bend into the fixing block 308, and then rotate the lead screw 311. When the lead screw 311 rotates, it will drive the clamping plate 310 to move forward through the second slide groove 309. When it contacts the bend, it will clamp and fix it.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A welding and positioning fixture for a bent pipe on a car seat back, comprising a base plate (1), characterized in that: The outer wall of the base plate (1) is fixedly connected with several mounting plates (101), the inner wall of the base plate (1) is provided with several positioning holes (102), and the top outer wall of the base plate (1) is provided with a positioning mechanism (2). The positioning mechanism (2) includes several mounting plates (201), the bottom of which is fixedly connected to the top outer wall of the base plate (1), and hollow shafts (202) are slidably connected to the inner walls of the mounting plates (201). Several slots (204) are provided on the inner wall of the base plate (1). Several limiting plates (205) are fixedly connected to the inner walls of the mounting plates (201). Fixed shafts (206) are slidably connected to the inner walls of the limiting plates (205). Springs (207) are sleeved on the outer walls of the fixed shafts (206). Several sliding grooves (210) are provided on the inner walls of the hollow shafts (202). The outer walls of the fixed shafts (206) away from the springs (207) are slidably connected to the sliding grooves (210).

2. The welding and positioning fixture for a bent pipe on a car backrest according to claim 1, characterized in that, The inner walls of several hollow shafts (202) are threaded with threaded rods (208), and the outer walls of the ends of several threaded rods (208) away from the fixed shaft (206) are fixedly connected with knobs (209). The top outer wall of the mounting plate (201) is provided with an adjustment mechanism (3).

3. The welding and positioning fixture for a bent pipe on a car backrest according to claim 2, characterized in that, The adjustment mechanism (3) includes several hollow columns (301), the top outer walls of the several hollow columns (301) are fixedly connected to the top outer wall of the mounting plate (201), the inner walls of the several hollow columns (301) are slidably connected with rack plates (302), the inner walls of the several hollow columns (301) are provided with grooves (304), and the outer walls of the several hollow columns (301) are fixedly connected with protective shells (303).

4. The welding and positioning fixture for a bent pipe on a car backrest according to claim 3, characterized in that, The inner walls of several protective shells (303) are rotatably connected to turntables (305), and the outer walls of several turntables (305) are fixedly connected to gears (312). The outer walls of several gears (312) are meshed with the outer walls of rack plates (302).

5. The welding and positioning fixture for a bent pipe on a car backrest according to claim 4, characterized in that, The inner walls of several protective shells (303) are slidably connected to limit shafts (306), and the outer walls of several limit shafts (306) are fitted with springs (307).

6. The welding and positioning fixture for a bent pipe on a car backrest according to claim 5, characterized in that, The outer walls of several limiting shafts (306) are in contact with the inner wall of the gear (312), and the top outer walls of several rack plates (302) are fixedly connected with fixing blocks (308).

7. The welding and positioning fixture for a bent pipe on a car backrest according to claim 6, characterized in that, Each of the fixed blocks (308) has a second sliding groove (309) on its inner wall, and each of the second sliding grooves (309) has a clamping plate (310) slidably connected to its inner wall.

8. The welding and positioning fixture for a bent pipe on a car backrest according to claim 7, characterized in that, Each of the clamps (310) has a lead screw (311) rotatably connected to its outer wall, and the outer wall of each of the lead screws (311) is engaged with the inner wall of the slide groove (309).

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