Connecting rod assembly welding positioning tool

Abstract

The utility model discloses a connecting rod assembly welding positioning tool which comprises a bottom frame and a welding positioning clamp located on the bottom frame. The welding positioning clamp comprises a connecting rod positioning tool and lining positioning tools located on the two sides of the connecting rod positioning tool, the connecting rod positioning tool comprises two sets of connecting rod positioning brackets which are symmetrically arranged, and connecting rod positioning grooves are formed in the upper ends of the connecting rod positioning brackets. The lining positioning tool comprises a sliding base plate transversely arranged on the bottom frame in a sliding mode and a sliding positioning block transversely arranged on the sliding base plate in a sliding mode, the sliding base plate is pushed by a first-stage air cylinder arranged at the outer side end of the sliding base plate, and a lining positioning seat is arranged on the inner side of the sliding positioning block close to the connecting rod positioning bracket. The sliding positioning block is pushed by a second-stage air cylinder arranged at the outer side end of the sliding positioning block. According to the welding positioning tool, the lining and the connecting rod in the connecting rod assembly are positioned before and after welding, the welding positioning tool is compact in structure, manual operation of the positioning tool is replaced with automatic control positioning, the labor cost is low, and the welding positioning efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding positioning tooling, and in particular relates to a connecting rod assembly welding positioning tooling. Background Art

[0002] The connecting rod assembly is a common mechanical component, and its welding process is to weld a forward bushing and a reverse bushing on both sides of the connecting rod.

[0003] The conventional welding process is manually operated welding, and the forward bushing, the connecting rod, and the reverse bushing are respectively positioned on the welding fixture for welding.

[0004] The positioning tools currently used all require manual positioning, and the positioning tools are also manually operated to discharge the material after welding is completed. The welding positioning tool process has a low degree of automation and low manual efficiency, and the welding quality of the finished product is uncontrollable. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a connecting rod assembly welding positioning tool, which adopts automatic control positioning to solve the technical defects of the existing manually operated tooling, such as low automation, low efficiency and uncontrollable welding quality.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a connecting rod assembly welding positioning tool comprises a bottom frame and a welding positioning fixture located on the bottom frame.

[0007] The welding positioning fixture comprises a connecting rod positioning tool and bushing positioning tools located on both sides of the connecting rod positioning tool. The connecting rod positioning tool comprises two groups of connecting rod positioning brackets which are symmetrically arranged. The upper ends of the connecting rod positioning brackets are provided with connecting rod positioning grooves.

[0008] The bushing positioning tooling includes a sliding base plate that is laterally slidably arranged on the bottom frame, and a sliding positioning block that is laterally slidably arranged on the sliding base plate. The sliding base plate is pushed by a primary cylinder arranged at its outer end. A bushing positioning seat is provided on the inner side of the sliding positioning block close to the connecting rod positioning bracket, and the sliding positioning block is pushed by a secondary cylinder arranged at its outer end.

[0009] As a further solution of the utility model, the tooling also includes a pneumatic pre-discharging mechanism located between two groups of connecting rod positioning brackets on the bottom frame.

[0010] The pneumatic pre-discharging mechanism includes a discharging base plate located on the bottom frame, a pneumatic slider that pushes forward and backward is provided at the rear end of the discharging base plate, an up and down pneumatic lifting cylinder is provided on the side of the pneumatic slider, and a discharging pneumatic clamp with an opening facing upward is provided at the front end of the lifting cylinder.

[0011] A pre-discharging support plate is arranged at the front end of the discharging base plate; left-right symmetrical pre-discharging positioning blocks are arranged on the pre-discharging support plate, and transverse grooves are arranged on the pre-discharging positioning blocks.

[0012] As a further solution of the utility model, the discharging pneumatic clamp includes two pneumatic chucks arranged opposite to each other.

[0013] As a further solution of the utility model, the horizontal position of the pre-discharging support plate is lower than the horizontal position of the discharging pneumatic clamp opening.

[0014] As a further solution of the utility model, a proximity switch 1 is provided on the discharge substrate corresponding longitudinally to the connecting rod positioning groove; a proximity switch 2 is provided longitudinally to the transverse groove on the pre-discharge support plate, and a photoelectric switch corresponding to the bushing positioning seat is provided on the sliding positioning block.

[0015] Compared with the prior art, the connecting rod assembly welding positioning tooling provided by the utility model has the following beneficial effects: the connecting rod positioning groove is used to position the connecting rod, the lifting cylinder controls the pneumatic chuck to rise and clamp the connecting rod, and the symmetrically arranged bushing positioning seats are respectively used to position a positive and a negative bushing in preparation for welding; after the welding is completed, the two sets of bushing positioning tooling slide outward, and the pneumatic chuck clamping the finished part is pushed forward to the pre-discharge support plate. When the finished part reaches above the pre-discharge positioning block, the pneumatic chuck opens, and the lifting cylinder controls the pneumatic chuck to descend and return to its original position. At this time, the finished part is placed in the horizontal groove.

[0016] The above scheme can realize the positioning of each component of the connecting rod assembly before and after welding. The welding positioning tooling has a compact structure and replaces the manually operated positioning tooling with automatic control positioning, which has low labor costs and high welding positioning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 The structure diagram of the pneumatic pre-discharging mechanism in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 3 The structure diagram of the pneumatic pre-discharging mechanism in the embodiment of the utility model is shown in FIG. Figure 2

[0021] Figure 4This is a structural schematic diagram of a welding positioning fixture in an embodiment of the utility model;

[0022] Reference numerals:

[0023] Welding workbench 2, welding machine 20, bottom frame 200;

[0024] Pre-discharge support plate 226, pre-discharge positioning block 227, transverse groove 228;

[0025] Pneumatic pre-discharging mechanism 212, discharging substrate 2121, pneumatic slide 2122, lifting cylinder 2123, discharging pneumatic clamp 2124, pneumatic chuck 2125;

[0026] Welding positioning fixture 221, connecting rod positioning tool 2211, connecting rod positioning bracket 2212, connecting rod positioning groove 2213;

[0027] Bushing positioning tooling 2221, sliding base plate 2222, sliding positioning block 2223, primary cylinder push 2224, bushing positioning seat 2225, secondary cylinder push 2226, photoelectric switch 2227. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] See attached Figure 1As shown, the connecting rod assembly welding positioning tooling of the embodiment of the utility model includes a bottom frame 20 , and a welding positioning fixture 221 and a pneumatic pre-discharging mechanism 212 located on the bottom frame 200 . The connecting rod assembly welding positioning tooling is applied in a welding workbench 2 including a welding machine 20 .

[0032] See also Figure 2 , 3 As shown, the pneumatic pre-discharging mechanism 212 includes a discharging base plate 2121 located on the bottom frame 200, a pneumatic slider 2122 that pushes forward and backward is provided at the rear end of the discharging base plate 2121, an up and down pneumatic lifting cylinder 2123 is provided on the side of the pneumatic slider 2122, and a discharging pneumatic clamp 2124 with an opening facing upward is provided at the front end of the lifting cylinder 2123; the discharging pneumatic clamp 2124 includes two pneumatic chucks 2125 arranged opposite to each other.

[0033] A pre-discharge support plate 2126 is provided at the front end of the discharge substrate 2121, and the horizontal position of the pre-discharge support plate 2126 is lower than the horizontal position of the opening of the discharge pneumatic clamp 2124; the pre-discharge support plate 2126 is provided with left-right symmetrical pre-discharge positioning blocks 2127, and the pre-discharge positioning blocks 2127 are provided with transverse grooves 2128, and the pre-discharge support plate 2126 is provided with a proximity switch 2 corresponding to the transverse groove 2128 in the longitudinal direction.

[0034] See also Figure 2-4 As shown, the welding positioning fixture 221 includes a connecting rod positioning tool 2211 and a bushing positioning tool 2221 located on both sides of the connecting rod positioning tool 2211, the connecting rod positioning tool 2211 includes a connecting rod positioning bracket 2212 arranged on the bottom frame 200 and located on both sides of the discharge base plate 2121, the upper end of the connecting rod positioning bracket 2212 is provided with a connecting rod positioning groove 2213, and the discharge base plate 2121 is provided with a proximity switch 1 longitudinally corresponding to the connecting rod positioning groove 2213.

[0035] See also Figure 4 As shown, the bushing positioning tool 2221 includes a sliding base plate 2222 which is laterally slidably arranged on the bottom frame 200, and a sliding positioning block 2223 which is laterally slidably arranged on the sliding base plate 2222. The sliding base plate 2222 is pushed by a primary cylinder 2224 arranged at its outer end. A bushing positioning seat 2225 is arranged on the inner side of the sliding positioning block 2223 close to the connecting rod positioning bracket 2212. A photoelectric switch 2227 corresponding to the bushing positioning seat 2225 is arranged on the sliding positioning block 2223. The sliding positioning block 2223 is pushed by a secondary cylinder 2226 arranged at its outer end.

[0036] The proximity switch corresponding to the longitudinal positioning groove 2213 on the discharge base plate 2121 identifies the connecting rod on the connecting rod positioning bracket 2212, and the lifting cylinder 2123 controls the pneumatic chuck 2125 to rise and clamp the connecting rod. The square photoelectric switch 2227 on the bushing positioning seat 2225 in the bushing positioning tooling 2221 on both sides identifies the bushing, so that the welding machine 20 can perform welding.

[0037] After welding is completed, the bushing positioning tools 2221 on both sides slide outward, and the pneumatic chuck 2125 clamping the finished part is pushed forward to the pre-discharge support plate 2126 through the pneumatic slider 2122. When the proximity switch 2 corresponding to the transverse groove 2128 on the pre-discharge support plate 2126 recognizes that the finished part arrives above the pre-discharge positioning block 2127, the pneumatic chuck 2125 opens and places the connecting rod of the finished part into the transverse groove 2128, and the lifting cylinder 2123 controls the pneumatic chuck 2125 to descend and return to its original position.

[0038] The embodiment of the utility model realizes automatic positioning of various components of the front and rear connecting rod assembly after welding, realizes automated operation, and improves the processing efficiency of the connecting rod assembly.

[0039] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. Connecting rod assembly welding positioning tool, characterized by: It includes a bottom frame and a welding positioning fixture located on the bottom frame; The welding positioning fixture comprises a connecting rod positioning fixture and a bushing positioning fixture located on both sides of the connecting rod positioning fixture, the connecting rod positioning fixture comprises two groups of connecting rod positioning brackets arranged symmetrically, and the upper ends of the connecting rod positioning brackets are each provided with a connecting rod positioning groove; The bushing positioning tooling includes a sliding base plate that is laterally slidably arranged on the bottom frame, and a sliding positioning block that is laterally slidably arranged on the sliding base plate. The sliding base plate is pushed by a primary cylinder arranged at its outer end. A bushing positioning seat is provided on the inner side of the sliding positioning block close to the connecting rod positioning bracket. The sliding positioning block is pushed by a secondary cylinder arranged at its outer end.

2. The connecting rod assembly welding positioning tool according to claim 1, characterized in that: It also includes a pneumatic pre-discharging mechanism located between two sets of connecting rod positioning brackets on the bottom frame; The pneumatic pre-discharging mechanism comprises a discharging base plate located on the bottom frame, a pneumatic slider that pushes forward and backward is provided at the rear end of the discharging base plate, a pneumatic lifting cylinder that moves up and down is provided on the side of the pneumatic slider, and a discharging pneumatic clamp with an opening facing upward is provided at the front end of the lifting cylinder; A pre-discharge support plate is disposed at the front end of the discharge substrate; a left-right symmetrical pre-discharge positioning block is disposed on the pre-discharge support plate, and a transverse groove is disposed on the pre-discharge positioning block.

3. The connecting rod assembly welding positioning tool according to claim 2, characterized in that: The discharging pneumatic clamp comprises two pneumatic clamps arranged opposite to each other.

4. The connecting rod assembly welding positioning tool according to claim 3, characterized in that: The horizontal position of the pre-discharging support plate is lower than the horizontal position of the discharging pneumatic clamp opening.

5. The connecting rod assembly welding positioning tool according to claim 4, characterized in that: The discharging substrate is provided with a proximity switch 1 which longitudinally corresponds to the connecting rod positioning groove; the pre-discharging support plate is provided with a proximity switch 2 which longitudinally corresponds to the transverse groove; and the sliding positioning block is provided with a photoelectric switch which corresponds to the bushing positioning seat.

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