Positioning clamp for welding water pump tensioning piece

Abstract

The utility model discloses a positioning fixture for welding a water pump tensioning piece, which relates to the field of water pump manufacturing and comprises a bottom plate and an upper cover plate slidably arranged on the bottom plate. A plurality of grooves and a plurality of lower screw clamping grooves are formed in the bottom plate at intervals, the grooves correspond to the lower screw clamping grooves in a one-to-one mode and communicate with the lower screw clamping grooves, the interiors of the grooves are used for positioning and placing drawstrings, and a plurality of welding head preformed holes are formed in the length direction of each groove at equal intervals in a penetrating mode. A plurality of upper screw clamping grooves are formed in the upper cover plate in a penetrating mode, the upper screw clamping grooves correspond to the lower screw clamping grooves in a one-to-one mode, screws abut against the corresponding drawstrings after being positioned through the upper screw clamping grooves, the lower screw clamping grooves assist in positioning, and a welding head moving groove is formed in the upper cover plate in the direction perpendicular to the upper screw clamping grooves in a penetrating mode. And the welding head moving groove is communicated with each upper screw clamping groove. According to the utility model, the clamping position is adjusted according to different lengths of the water pump tensioning piece, and the workload of repeated measurement of personnel is reduced by setting corresponding scale marks of different lengths of the water pump tensioning piece.

Description

Technical Field

[0001] This utility model relates to the field of water pump manufacturing, and specifically to a positioning fixture for welding water pump tensioning parts. Background Technology

[0002] With the rapid development of industrial manufacturing, welding technology has been widely used in various industries. Welding positioning fixtures, as key auxiliary tools in the welding process, play an irreplaceable role in ensuring welding accuracy, improving production efficiency, and enhancing product quality. However, existing welding positioning fixtures still have many shortcomings in terms of design, use, and performance.

[0003] like Figure 1 The diagram shows the structure of a water pump tensioning component, which is welded from a strap (3-1) and a screw (4-1). Positioning of the welding fixture for the water pump tensioning component often relies on manual operation, which not only increases the difficulty of operation but also makes it difficult to guarantee positioning accuracy, resulting in insufficient positioning precision. Especially when welding precision parts, even a small positioning error can lead to a decrease in welding quality. After welding, inspectors need to conduct a full inspection for quality control, which increases the labor intensity of personnel and adds unnecessary costs. Furthermore, for different models and specifications of water pumps, the water pump tensioning component usually has multiple specifications, with varying lengths of the strap and screw, and different welding positions, requiring the design of multiple positioning fixtures, further increasing costs. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a positioning fixture for welding water pump tensioning parts. By optimizing the structural design, improving the positioning accuracy, and enhancing the applicability, it can meet the needs of welding production.

[0005] The purpose of this utility model is achieved through the following technical solution: a positioning fixture for welding water pump tensioning components, wherein the water pump tensioning components are welded from a tension strap and a screw, the positioning fixture includes a base plate and an upper cover plate slidably disposed on the base plate, the two being connected by a pin-type positioning connection; the base plate has several grooves and several lower screw slots spaced apart, the grooves and lower screw slots corresponding one-to-one and communicating, the grooves being used for positioning and placing the tension strap, and several welding head pre-reserved holes being equally spaced along the length direction of each groove; the upper cover plate has several upper screw slots being opened through, and the upper screw slots corresponding one-to-one with the lower screw slots, the screw being positioned by the upper screw slots and then abutting against the corresponding tension strap, and being further positioned by the lower screw slots, and a welding head moving groove being opened through the upper cover plate in a direction perpendicular to the upper screw slots, the welding head moving groove being communicating with each upper screw slot.

[0006] As a further technical solution, several sets of lower positioning holes are opened on the outer edges of both sides of the base plate, and at least one set of upper positioning holes are opened on the outer edges of both sides of the upper cover plate. The upper positioning holes and the lower positioning holes are matched and corresponding positioning pins are inserted to position the base plate and the upper cover plate.

[0007] As a further technical solution, several scale lines are provided on the outer side wall of the base plate to correspond to different specifications of pull straps, and scale indicator arrows are provided on the outer side wall of the top cover plate to align with the scale lines.

[0008] As a further technical solution, each set of lower positioning holes corresponds to a scale line.

[0009] As a further technical solution, each upper screw slot has a through-hole for mounting a magnet at one end near the welding head moving slot, so that the screw can be attracted into the upper screw slot by the magnet.

[0010] As a further technical solution, the groove is provided with a positioning protrusion that matches the contour of the pull strap head.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. A groove matching the contour of the pull belt is opened in the base plate, and a positioning protrusion is set in the groove to ensure the lateral and longitudinal positioning accuracy of the pull belt in the groove;

[0013] 2. Each groove and a lower screw slot form a group, and an upper screw slot is opened on the upper cover plate to ensure the lateral and longitudinal positional accuracy after the screw is inserted;

[0014] 3. Multiple welding head pre-reserved holes are opened in the groove. Different holes can be selected for welding according to the different length requirements of the water pump tensioning parts. At the same time, multiple sets of holes with the same distance (lower positioning holes) are set to work with the upper positioning block for position adjustment.

[0015] 4. The bottom plate sidewall is also equipped with graduations, which can be aligned with the graduation indicator arrows on the top cover plate, improving the accuracy of personnel operations and reducing the workload of repeated measurements;

[0016] 5. A magnet is installed at the end of the upper screw slot to attract the screw and prevent it from falling off during operation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the finished water pump tensioning component of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure during welding of this utility model.

[0019] Figure 3 This is a top view of the bottom plate of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the upper cover plate in this utility model.

[0021] Figure 5 This is a top view of the upper cover plate in this utility model.

[0022] Figure 6 This is a schematic diagram showing the installation position of the magnet in this utility model.

[0023] Figure 7 This is a schematic diagram of the structure when the bottom plate and the top cover plate are aligned in this utility model.

[0024] Figure 8 This is a schematic diagram of the structure of the water pump tensioning parts of different specifications in this utility model. Figure 1 .

[0025] Figure 9 This is a schematic diagram of the structure of the water pump tensioning parts of different specifications in this utility model. Figure 2 .

[0026] Figure 10 This is a schematic diagram of the structure of the water pump tensioning parts of different specifications in this utility model. Figure 3 .

[0027] Figure 11 This is a schematic diagram of the structure of the water pump tensioning parts of different specifications in this utility model. Figure 4 .

[0028] Explanation of reference numerals in the attached drawings: base plate 1-1, groove 1-2, lower screw groove 1-3, welding head reserved hole 1-4, lower positioning hole 1-5, scale line 1-6, positioning protrusion 1-7, upper cover plate 2-1, upper screw groove 2-2, welding head moving groove 2-3, upper positioning hole 2-4, mounting hole 2-5, scale indicator arrow 2-6, water pump tensioning component, pull strap 3-1, screw 4-1, magnet 5-1. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings:

[0030] Example: As attached Figures 1-11 As shown, this positioning fixture for welding water pump tensioning components includes a base plate 1-1, a groove 1-2, a lower screw groove 1-3, a welding head pre-drilled hole 1-4, a lower positioning hole 1-5, a scale line 1-6, a positioning protrusion 1-7, an upper cover plate 2-1, an upper screw groove 2-2, a welding head moving groove 2-3, an upper positioning hole 2-4, a mounting hole 2-5, a scale indicator arrow 2-6, a water pump tensioning component, a strap 3-1, a screw 4-1, and a magnet 5-1.

[0031] Reference Appendix Figure 2 ,3 A top cover plate 2-1 is slidably mounted on the base plate 1-1. Preferably, the length of the top cover plate 2-1 matches that of the base plate 1-1, and the width of the top cover plate 2-1 is approximately half that of the base plate 1-1. Figure 3 , 4 As shown, several sets of lower positioning holes 1-5 are opened on the outer edges of both sides of the base plate 1-1, and two sets of upper positioning holes 2-4 (one set at the front and one set at the back) are opened on the outer edges of both sides of the upper cover plate 2-1. The upper positioning holes 2-4 cooperate with the lower positioning holes 1-5, and corresponding positioning pins are inserted to position the base plate 1-1 and the upper cover plate 2-1. That is, the base plate 1-1 and the upper cover plate 2-1 are connected by a pin-type positioning connection.

[0032] Furthermore, five grooves 1-2 and five lower screw slots 1-3 are spaced apart on the base plate 1-1 (five in this embodiment, but other numbers are also possible). The grooves 1-2 and lower screw slots 1-3 correspond one-to-one and are connected (i.e., each groove 1-2 and one lower screw slot 1-3 form a group). The pull strap 3-1 can be positioned and placed in the grooves 1-2. Preferably, as shown... Figure 2 , 3 As shown, the groove 1-2 is provided with a positioning protrusion 1-7 that matches the contour of the head of the pull strap 3-1, ensuring the lateral and longitudinal positioning accuracy of the water pump tensioner pull strap 3-1 in the groove. In addition, three (three in this embodiment, but other numbers are also possible) welding head pre-drilling holes 1-4 are provided along the length of each groove 1-2, evenly spaced, allowing the lower welding head of the welding machine to pass through for welding. Five upper screw slots 2-2 are provided on the upper cover plate 2-1, and each upper screw slot 2-2 corresponds to a lower screw slot 1-3. The screw 4-1 is positioned by the upper screw slot 2-2 and then abuts against the corresponding pull strap 3-1, with the lower screw slot 1-3 providing auxiliary positioning. Figure 4 , 5 As shown, a welding head moving groove 2-3 (direction perpendicular to the upper screw slot 2-2) is opened through the upper cover plate 2-1. The welding head moving groove 2-3 is connected to each upper screw slot 2-2, which facilitates the upper welding head of the welding machine to move back and forth along the welding head moving groove 2-3.

[0033] Reference Appendix Figure 6 , 7Several scale lines 1-6 are provided on the outer wall of the base plate 1-1, corresponding to different specifications of the pull straps 3-1. Each set of lower positioning holes 1-5 corresponds to one scale line 1-6 to ensure positioning accuracy. Meanwhile, a scale indicator arrow 2-6 is provided on the outer wall of the upper cover plate 2-1. Preferably, the position of the scale indicator arrow 2-6 corresponds to the welding head moving groove 2-3, that is, at the front end of the screw 4-1. During welding, aligning the scale indicator arrow 2-6 with one of the scale lines 1-6 can improve the accuracy of personnel operation and reduce the workload of repeated measurements.

[0034] like Figure 4 , 6 As shown, preferably, a mounting hole 2-5 is formed through each upper screw slot 2-2 near the end of the welding head moving slot 2-3. A magnet 5-1 is installed in the mounting hole 2-5, and the screw 4-1 placed in the upper screw slot 2-2 is attracted by the magnet 5-1. When the screw 4-1 is placed into the upper cover plate 2-1, the magnet 5-1 attracts it, thereby preventing the water pump tensioning screw part 4-1 from falling off.

[0035] Reference Appendix Figure 1 , 8 ~11. The water pump tensioning component is welded from the pull belt 3-1 and the screw 4-1. In actual production, it is necessary to weld and process water pump tensioning components of various specifications, that is, the lengths of the pull belt 3-1 and the screw 4-1 are different.

[0036] The working process of this utility model:

[0037] Taking a water pump tensioner with a welding length of 41mm as an example Figure 7 As shown, first, place the pull strap 3-1 into the corresponding groove 1-2. Adjust the relative position of the upper cover plate 2-1 and the base plate 1-1 until the scale indicator arrow 2-6 on the upper cover plate 2-1 aligns with the scale line 1-6 (marked with the number "41") on the base plate 1-1. Then, insert the positioning pin into the upper positioning hole 2-4. After the positioning pin passes through the corresponding lower positioning hole 1-5, the base plate 1-1 and the upper cover plate 2-1 are positioned. Once the operator has checked that everything is correct, welding can begin. The lower welding head of the welding machine passes through the welding head pre-drilled hole 1-4 for welding, while the upper welding head moves back and forth along the welding head moving groove 2-3 for welding.

[0038] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A positioning fixture for welding a water pump tensioning component, the water pump tensioning component being welded from a tension strap (3-1) and a screw (4-1), characterized in that: It includes a base plate (1-1) and an upper cover plate (2-1) slidably mounted on the base plate (1-1), which are connected by a pin-type positioning connection; the base plate (1-1) has several grooves (1-2) and several lower screw slots (1-3) spaced apart, the grooves (1-2) and the lower screw slots (1-3) correspond one-to-one and are connected, the grooves (1-2) are used for positioning and placing the pull strap (3-1), and several welding head reserved holes (1-4) are equally spaced along the length of each groove (1-2); the upper cover plate (2-1) -1) Several upper screw slots (2-2) are opened through the upper part, and the upper screw slots (2-2) correspond one-to-one with the lower screw slots (1-3). After the screw (4-1) is positioned by the upper screw slots (2-2), it abuts against the corresponding pull strip (3-1) and is positioned by the lower screw slots (1-3). A welding head moving groove (2-3) is opened through the upper cover plate (2-1) in a direction perpendicular to the upper screw slots (2-2). The welding head moving groove (2-3) is connected to each upper screw slot (2-2).

2. The positioning fixture for welding water pump tensioning parts according to claim 1, characterized in that: Several sets of lower positioning holes (1-5) are opened on the outer edges of both sides of the base plate (1-1), and at least one set of upper positioning holes (2-4) are opened on the outer edges of both sides of the upper cover plate (2-1). The upper positioning holes (2-4) cooperate with the lower positioning holes (1-5) and corresponding positioning pins are inserted to position the base plate (1-1) and the upper cover plate (2-1).

3. The positioning fixture for welding water pump tensioning parts according to claim 2, characterized in that: Several scale lines (1-6) are provided on the outer side wall of the base plate (1-1) to correspond to different specifications of pull straps (3-1). The outer side wall of the top cover plate (2-1) is provided with scale indicator arrows (2-6) to align with the scale lines (1-6).

4. The positioning fixture for welding water pump tensioning parts according to claim 3, characterized in that: Each set of lower positioning holes (1-5) corresponds to a scale line (1-6).

5. The positioning fixture for welding water pump tensioning parts according to claim 1, characterized in that: Each upper screw slot (2-2) has a through-hole (2-5) at one end near the welding head moving slot (2-3) for mounting a magnet (5-1), which attracts the screw (4-1) placed in the upper screw slot (2-2).

6. The positioning fixture for welding water pump tensioning parts according to claim 1, characterized in that: The groove (1-2) is provided with a positioning protrusion (1-7) that matches the head contour of the pull strap (3-1).

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