Connecting rod cap oil needle welding tool and device

Abstract

The utility model discloses a connecting rod cover oil needle welding tool and equipment, and relates to the technical field of connecting rod machining. The pressing mechanism is used for pressing the connecting rod cover on the base; a groove is formed in the mounting block, the groove is matched with the outer contour of the oil needle, an opening is formed in one end of the groove, one end of the oil needle penetrates out of the opening and can correspond to the welding point position of the connecting rod cover, and the mounting block can move close to or away from the connecting rod cover. According to the tool and the equipment, the connecting rod cover and the oil needle can be conveniently and firmly positioned, and the welding production efficiency and consistency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod processing, in particular to a connecting rod cover oil needle welding tool and equipment. Background Art

[0002] The crankshaft connecting rod mechanism is the main component of the engine for energy conversion and work cycle. The connecting rod plays a connecting role in the crankshaft connecting rod mechanism, especially the connecting rod big end in the connecting rod has a high working intensity. The crankshaft connecting rod mechanism mainly bears cylinder pressure, reciprocating inertia force and rotational inertia force. Since the engine speed is usually high, the periodic alternating load puts higher requirements on the lubrication of the connecting rod big end.

[0003] In order to lubricate the connecting rod better, some prior art welds an oil needle on the connecting rod cover. When the crankshaft rotates and drives the connecting rod to swing, the oil needle will swing in the crankcase oil pool, and the lubricating oil in the crankcase oil pool will be thrown to the connecting rod bearing, the connecting rod small head copper sleeve, and the main bearing to play a lubricating role. However, in the prior art, most of the connecting rods are first manually clamped, and then a welding gun and an oil needle are held, and finally the oil needle is welded on the connecting rod, which results in low welding efficiency and poor welding consistency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the first purpose of the utility model is to provide a connecting rod cover oil needle welding tool, which can conveniently and firmly position the connecting rod cover and the oil needle, thereby improving production efficiency and positioning consistency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A connecting rod cover oil needle welding tool, comprising:

[0007] A base, provided with a positioning structure for positioning the connecting rod cover;

[0008] A pressing mechanism, used for pressing the connecting rod cover onto the base;

[0009] and a mounting block, on which a groove is provided, the groove matches the outer contour of the oil needle and one end of which is provided with an opening, one end of the oil needle passes through the opening and can correspond to the welding point of the connecting rod cover, and the mounting block can move close to or away from the connecting rod cover.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] When in use, place the connecting rod cover on the positioning structure, and then the clamping mechanism presses the connecting rod onto the base. The clamping mechanism and the positioning structure together firmly position the connecting rod cover. In addition, the oil needle can be positioned by placing it into the groove; the positioning of the connecting rod cover and the oil needle is convenient and reliable, which improves efficiency and consistency.

[0012] Furthermore, the positioning structure comprises a cylinder fixedly connected to the base, the outer diameter of the cylinder matches the inner diameter of the mounting hole of the connecting rod cover, and the clamping mechanism can move along the axial direction of the cylinder.

[0013] Furthermore, the clamping mechanism includes a slider, a pressure plate mounted on the slider, and a first driving module for driving the slider to move axially along the cylinder.

[0014] Furthermore, the pressure plate is elastically connected to the sliding block along the axial direction of the cylinder.

[0015] Furthermore, it also includes a light rod with one end fixedly connected to the pressure plate, a spring is sleeved on the light rod, and the spring is located between the pressure plate and the slider; a strip groove is provided on the base, one end of the slider passes through the strip groove and is slidably connected to the end of the light rod away from the pressure plate.

[0016] Furthermore, a fixture for stabilizing the oil needle is fixed in the groove.

[0017] Furthermore, the fixing object includes a magnetic attraction member.

[0018] The second object of the utility model is to provide a connecting rod cover oil needle welding device, which can conveniently firmly position and weld the connecting rod cover and the oil needle, thereby improving production efficiency and positioning consistency.

[0019] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0020] A connecting rod cover oil needle welding device comprises any one of the above-mentioned connecting rod cover oil needle welding tools and a welding arm, wherein the welding arm and the welding tool can move relatively, so that the welding arm can weld the oil needle to the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of welding tooling in some of the embodiments;

[0022] Figure 2 Schematic diagram of the structure of welding equipment in some embodiments.

[0023] In the above drawings:

[0024] 1. Connecting rod cover;

[0025] 2. base; 201. support plate; 202. cylinder; 203. vertical plate; 204. bottom plate;

[0026] 3. Clamping mechanism; 301. Sliding block; 302. Pressing plate;

[0027] 4. Mounting block; 5. Oil needle; 6. Polish rod; 7. Platform; 8. Slide rail; 9. Lead screw; 10. Second drive module. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; the structures described in the various embodiments can be freely combined without any conflict in structure or principle.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] The following is a description of some embodiments of the present invention in conjunction with the accompanying drawings:

[0032] like Figure 1 and Figure 2 As shown, the utility model proposes a connecting rod cover oil needle welding tool, including: a base 2, a clamping mechanism 3 and a mounting block 4, wherein:

[0033] A positioning structure for positioning the connecting rod cover 1 (i.e., the connecting rod big end cover) is provided on the base 2. Exemplarily, the base 2 includes a support plate 201. The support plate 201 has a horizontal section and a vertical section. Two cylinders 202 extending left and right are fixedly provided on the vertical section. The two cylinders 202 are arranged up and down, and the outer diameters of the two cylinders 202 match the inner diameter of the mounting hole of the connecting rod cover 1. In this way, the structure of the connecting rod cover 1 itself is reasonably utilized. The connecting rod cover 1 can be initially positioned by inserting the connecting rod cover 1 from right to left onto the two cylinders 202. The positioning structure is simple and easy to operate.

[0034] The clamping mechanism 3 is used to press the connecting rod cover 1 onto the base 2. Specifically, the clamping mechanism 3 is configured to be movable along the axial direction of the cylinder 202 to prevent the connecting rod cover 1 from detaching from the cylinder 202 from left to right; illustratively, the clamping mechanism 3 includes a slider 301, a pressure plate 302 and a first drive module. The slider 301 is slidably connected to the base 2, and the pressure plate 302 is installed on the slider 301 and can move with the slider 301. The first drive module can be a linear drive mechanism (such as a cylinder / oil cylinder / screw, etc.), and the moving end of the linear drive mechanism is fixedly connected to the slider 301 to drive the slider 301 to move toward / away from the connecting rod cover 1 as needed. When the slider 301 moves toward the connecting rod cover 1, the pressure plate 302 can be pressed on the outer wall of the connecting rod cover 1.

[0035] A groove is provided on the mounting block 4, and the groove matches the outer contour of the oil needle 5 and an opening is provided at the bottom end of the groove. The bottom end of the oil needle 5 passes through the opening and can correspond to the welding point of the connecting rod cover 1 (the specific position of the point depends on specific needs, and is roughly located on the upper side wall of the connecting rod cover 1 in practice). The mounting block 4 can move closer to or away from the connecting rod cover 1. Exemplarily, the mounting block 4 is driven to move by the second driving module 10. When the mounting block 4 is close to the connecting rod cover 1, the bottom end of the oil needle 5 corresponds to the welding point of the connecting rod cover 1 (that is, Figure 1 and Figure 2 When the oil needle 5 is initially welded to the side opposite to the connecting rod cover 1, the mounting block 4 moves away from the connecting rod cover 1 to free up operating space, making it easier for the welding arm to weld the other side opposite to the oil needle 5 and the connecting rod cover 1.

[0036] By adopting the above scheme, when in use, the connecting rod cover 1 is inserted from right to left onto the cylinder 202 to achieve preliminary positioning, and then the first drive module drives the slider 301 and the pressure plate 302 to move to the left until the pressure plate 302 presses the connecting rod cover 1 against the vertical section of the support plate 201. At this time, the connecting rod cover 1 is jointly positioned by the cylinder 202 and the pressure plate 302, and the structure is simple and the positioning is firm; then the second drive module 10 drives the mounting block 4 to move to the top of the connecting rod cover 1, and at this time the oil needle 5 can be placed into the groove to position the oil needle 5, and the relative position of the oil needle 5 and the connecting rod cover 1 is also determined; it can be seen that the positioning of the connecting rod cover 1 and the oil needle 5 is convenient and reliable, which greatly improves the efficiency and consistency.

[0037] Furthermore, a positioning groove is provided at the inner corner of the support plate 201 , and the positioning groove matches the bottom side of the connecting rod cover 1 , so that the support plate 201 can support the connecting rod cover 1 upward, thereby preventing the connecting rod cover 1 from being completely supported by the two cylinders 202 .

[0038] Furthermore, a flexible structure is fixedly provided on the pressure plate 302 to prevent the pressure plate 302 from crushing the connecting rod cover 1. Exemplarily, the flexible structure may be a rubber pad or the like.

[0039] Furthermore, in order to make the oil needle 5 more stably located in the groove, a fixing is fixed in the groove; illustratively, the fixing includes a magnetic part / rubber ring, and the magnetic part uses ferromagnetism to more firmly adsorb the oil needle 5 in the groove. If a rubber ring is used, the oil needle 5 can also be more firmly positioned in the groove through the interference fit between the rubber ring and the oil needle 5.

[0040] In some other embodiments, the pressure plate 302 is elastically connected to the slider 301 along the axial direction of the cylinder 202; in this way, the pressure plate 302 can automatically compensate for the gap with the connecting rod cover 1 under the action of elastic force, ensuring that the pressure plate 302 is stably and continuously pressed on the connecting rod cover 1; in addition, by adjusting the position of the slider 301, the size of the clamping force of the pressure plate 302 can be adjusted.

[0041] For example, the right end of the pressure plate 302 is fixedly connected with a polished rod 6, the diameter of the polished rod 6 is smaller than the diameter of the pressure plate 302, and a spring is sleeved on the polished rod 6, and the spring is located between the pressure plate 302 and the slider 301; the base 2 also includes a vertical plate 203, and the vertical plate 203 is provided with a horizontally extending strip groove, one end of the slider 301 passes through the strip groove and is slidably connected with the right end of the polished rod 6, specifically, the right end of the polished rod 6 passes through the slider 301 and the two are in clearance, and the right end of the polished rod 6 is provided with a slot, and a clamp is clamped in the slot to prevent the polished rod 6 from being separated from the slider 301. In this way, the sliding connection structure of the slider 301 and the base 2 is simple. In addition, the size of the pressing force of the pressure plate 302 can be adjusted by controlling the distance between the slider 301 and the connecting rod cover 1. For example, when the gap between the slider 301 and the connecting rod cover 1 is small, the spring is compressed to a large extent, so that the pressing force of the pressure plate 302 is large, and vice versa, the same reasoning is repeated here.

[0042] The utility model also provides a connecting rod cover oil needle welding device, such as Figure 1 and Figure 2As shown, it includes a welding arm and any one of the above-mentioned connecting rod cover oil needle welding tools, wherein the welding arm and the welding tool can move relatively, and the welding arm can be an existing SAIBON-B180 six-axis welding robot, which can ensure the stability and consistency of welding; illustratively, it also includes a platform 7, on which two left and right extending slide rails 8 are fixed, and the welding arm (the structure and control logic of the welding arm are prior art, not shown in the figure, and will not be repeated here) is arranged at the left end of the slide rail 8, and the base 2 also includes a bottom plate 204, and the support plate 201, the vertical plate 203 and the second drive module 10 are all installed on the bottom plate 204, and the two ends of the bottom plate 204 are respectively clamped on the slide rail 8 and can slide along the slide rail 8. A third drive module for driving the bottom plate 204 to move left and right is also installed on the platform 7. The third drive module takes a lead screw 9 as an example, and the lead screw 9 drives the bottom plate 204 to move to the left to reach the welding arm, and the welding arm welds the oil needle 5 on the connecting rod cover 1.

[0043] The optimal working process of the utility model is:

[0044] like Figure 1 and Figure 2 As shown, the connecting rod cover 1 is manually placed on the support plate 201 from left to right until the cylinder 202 is inserted into the mounting hole of the connecting rod cover 1, and then the first driving module drives the slider 301 to move to the left, so that the pressure plate 302, the light rod 6 and the spring move together until the pressure plate 302 is pressed on the outer wall of the connecting rod cover 1. At this time, the slider 301 continues to slide to the left for a distance. During this process, the light rod 6 moves to the right relative to the slider 301, and the spring is further compressed, so that the pressure plate 302 is always pressed against the outer wall of the connecting rod cover 1; then the second driving module 10 drives the mounting block 4 to move to the top of the connecting rod cover 1. At the same time, the oil needle 5 is manually placed into the groove of the mounting block 4, and the magnetic part in the groove tightly absorbs the oil needle 5; finally, the third driving module drives the bottom plate 204 to move left to the welding arm, and the welding arm first welds the bottom edge of the front side of the oil needle 5 to the connecting rod cover 1 for preliminary fixation, and then the second driving module 10 drives the mounting block 4 away from the connecting rod cover 1, and at this time, the welding arm welds the remaining bottom edges of the oil needle 5 to the connecting rod cover 1 in turn to complete the welding operation; finally, the bottom plate 204 moves right and resets, and the slider 301 moves right and resets, and at this time, the welded connecting rod cover 1 and the oil needle 5 can be removed to prepare for the next working cycle.

Claims

1. A connecting rod cover oil needle welding tool, characterized in that: include: The base (2) is provided with a positioning structure for positioning the connecting rod cover (1); A pressing mechanism (3) for pressing the connecting rod cover (1) onto the base (2); and a mounting block (4) having a groove thereon, the groove matching the outer contour of the oil needle (5) and having an opening at one end thereof, one end of the oil needle (5) passing through the opening and corresponding to a welding point of the connecting rod cover (1), and the mounting block (4) being movable toward or away from the connecting rod cover (1).

2. The connecting rod cover oil needle welding tool according to claim 1, characterized in that: The positioning structure comprises a cylinder (202) fixedly connected to the base (2), the outer diameter of the cylinder (202) matches the inner diameter of the mounting hole of the connecting rod cover (1), and the clamping mechanism (3) can move along the axial direction of the cylinder (202).

3. The connecting rod cover oil needle welding tool according to claim 2, characterized in that: The clamping mechanism (3) comprises a slider (301), a pressure plate (302) mounted on the slider (301), and a first driving module for driving the slider (301) to move axially along the cylinder (202).

4. The connecting rod cover oil needle welding tool according to claim 3, characterized in that: The pressure plate (302) is elastically connected to the sliding block (301) along the axial direction of the cylinder (202).

5. A connecting rod cover oil needle welding tool according to claim 3 or 4, characterized in that: It also includes a light rod (6) with one end fixedly connected to the pressure plate (302), a spring sleeved on the light rod (6), and the spring is located between the pressure plate (302) and the slider (301); a strip groove is provided on the base (2), one end of the slider (301) passes through the strip groove and is slidably connected to the end of the light rod (6) away from the pressure plate (302).

6. A connecting rod cap oil needle welding tool according to any one of claims 1 to 4, characterized in that: A fixing object for stabilizing the oil needle (5) is fixed in the groove.

7. The connecting rod cap oil needle welding tool according to claim 6, characterized in that: The fixing object includes a magnetic attraction member.

8. A connecting rod cover oil needle welding device, characterized in that: It comprises a connecting rod cover (1) oil needle (5) welding tool and a welding arm as claimed in any one of claims 1 to 7, wherein the welding arm and the welding tool can move relative to each other so that the welding arm can weld the oil needle (5) to the connecting rod.

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