Positioning, clamping and welding tool

Abstract

The utility model relates to a positioning and clamping welding tool which can ensure that an L-shaped welding seam on a workpiece meets the welding requirement, is convenient and rapid to take and place and is beneficial to improving the manufacturing efficiency. The positioning, clamping and welding tool is used for clamping a workpiece with an L-shaped abutted seam and comprises a mounting base frame and a clamping part, comprising a mounting base table, an internal support fixedly arranged on the mounting base table, an external support fixedly arranged on the mounting base table and spaced from the internal support in the left-right direction, and a linkage support slidably arranged on the external support in the left-right direction. The internal positioning structure comprises an internal supporting mechanism arranged on the internal bracket and is used for supporting and positioning from the inner side of the workpiece; and the external pressing and holding structure comprises a single-side pressing and holding mechanism which is arranged on the external bracket and is used for pressing and holding from the left side or the right side of the workpiece and a double-side pressing and holding mechanism which is arranged on the linkage bracket and is used for pressing and holding from the front side and the upper side of the workpiece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a positioning and clamping welding tool. BACKGROUND

[0002] With the improvement of people's living quality, the range hood has become one of the indispensable kitchen household appliances in modern families. It is usually installed above the kitchen stove and can suck the oil fume generated during cooking, thereby purifying the kitchen environment and improving the comfort of people during cooking.

[0003] At present, most range hoods usually install a fan in a fan box to provide an oil fume passage communicating with a smoke collecting cavity while shielding the fan. However, the existing fan box is usually made by punching and assembling a plate, which cannot guarantee the stability of the size and position of the L-shaped joint seam on the fan box, and it is difficult to meet the welding requirements, which brings great difficulty to the welding process and seriously affects the manufacturing efficiency of the fan box. CONTENT OF THE UTILITY MODEL

[0004] In view of the problem that the L-shaped joint seam on the existing fan box cannot guarantee the stability of the size and position and is difficult to meet the welding requirements, the present application provides a positioning and clamping welding tool which can guarantee that the L-shaped weld on the workpiece meets the welding requirements, is convenient and fast to take and place, and is beneficial to improve the manufacturing efficiency.

[0005] In order to achieve the above at least one advantage or other advantages and purposes of the present application, the present application provides a positioning and clamping welding tool for clamping a workpiece with an L-shaped joint seam, comprising:

[0006] The mounting base frame comprises a mounting base, an internal support frame fixed to the mounting base, an external support frame fixed to the mounting base and arranged at intervals with the internal support frame along the left-right direction, and a linkage support frame slidably arranged in the external support frame along the left-right direction;

[0007] The internal positioning structure comprises an internal supporting mechanism arranged in the internal support frame for supporting and positioning from the inner side of the workpiece; and

[0008] The external pressing structure comprises a one-side pressing mechanism arranged in the external support frame for pressing from the left side or the right side of the workpiece, and a two-side pressing mechanism arranged in the linkage support frame for pressing from the front side and the upper side of the workpiece.

[0009] In some embodiments of the present application, two of the external supports are arranged on the left and right sides of the internal supports; two of the linkage supports are respectively and correspondingly arranged on the two external supports; two of the single-side pressing mechanisms are respectively and correspondingly mounted on the two external supports; and two of the double-side pressing mechanisms are respectively and correspondingly mounted on the two linkage supports.

[0010] In some embodiments of the present application, two of the internal supports are fixedly arranged between the two external supports along the left-right direction; and two of the internal supporting mechanisms are respectively and correspondingly mounted on the two internal supports.

[0011] In some embodiments of the present application, the internal supporting mechanism comprises an internal push rod motor mounted on the internal support, a supporting block fixedly connected with a push rod of the internal push rod motor, and a limiting block arranged between the supporting block and the internal support; two ends of the limiting block are respectively limitingly connected with the supporting block and the internal support, for limiting the moving distance of the supporting block relative to the internal support to perform automatic positioning.

[0012] In some embodiments of the present application, the internal supporting mechanism further comprises a positioning block protruding from the mounting base, a front surface of the positioning block is flush with a front supporting surface of the supporting block; two of the positioning blocks are fixedly arranged on the mounting base along the left-right direction to respectively correspond to the two supporting blocks, wherein a left surface of the positioning block on the left side is parallel to a left supporting surface of the corresponding supporting block, and a right surface of the positioning block on the right side is parallel to a right supporting surface of the corresponding supporting block.

[0013] In some embodiments of the present application, the single-side pressing mechanism comprises a single-side push rod motor mounted on the external support, and a single-side pressing block fixedly connected with a push rod of the single-side push rod motor, the single-side pressing block moves along the left-right direction under the action of the single-side push rod motor, for pressing a left panel or a right panel of the workpiece.

[0014] In some embodiments of the present application, the mounting base further comprises a linkage guiding mechanism arranged between the external support and the linkage support; wherein the linkage guiding mechanism comprises a slide way support fixedly connected with the external support, and a guiding slide rail fixedly connected with the linkage support and extending along the left-right direction, and the guiding slide rail is slidably embedded in the slide way support.

[0015] In some embodiments of the present application, the mounting base further comprises a linkage driving mechanism arranged between the outer support and the linkage support; wherein the linkage driving mechanism comprises a linkage push rod motor mounted on the outer support and / or the slide support, and a linkage block fixedly connected with a push rod of the linkage push rod motor, and the linkage block is fixedly connected with the linkage support to drive the linkage support to move along the left-right direction under the pushing of the linkage push rod motor.

[0016] In some embodiments of the present application, the double-side pressing mechanism comprises a vertical plate body extending upward from the linkage support, a horizontal plate body extending left and right from an upper end of the vertical plate body, a front-side pressing mechanism mounted on the vertical plate body and used for pressing a front face of the workpiece backward, and an upper-side pressing mechanism mounted on the horizontal plate body and used for pressing the front face downward.

[0017] In some embodiments of the present application, the front-side pressing mechanism comprises a front-side push rod motor mounted on the vertical plate body, and a front-side pressing block fixedly connected with a push rod of the front-side push rod motor, wherein the front-side pressing block moves along the front-back direction under the driving of the front-side push rod motor, and is used for pressing the front face backward; and the upper-side pressing mechanism comprises an upper-side push rod motor mounted on the horizontal plate body, and an upper-side pressing block fixedly connected with a push rod of the upper-side push rod motor, wherein the upper-side pressing block moves along the up-down direction under the driving of the upper-side push rod motor, and is used for pressing the front face downward.

[0018] In summary, when the linkage support slides relative to the outer support to slide away from the inner support, the linkage support can drive the double-side pressing mechanism to move away from the inner support along the left-right direction, so as to avoid the gap between the inner support and the outer support, and facilitate the taking and placing of the workpiece to the inner support, and ensure that the workpiece does not interfere with the outer pressing structure during taking and placing.

[0019] In addition, after the workpiece is placed outside the inner support, the inner support can support and position from the inner side of the workpiece, so as to ensure the overall dimensional stability of the workpiece; further, the single-side pressing mechanism can press from the left side or the right side of the workpiece, and the double-side pressing mechanism is driven by the linkage support to approach the inner support, so as to press from the front side and the upper side of the workpiece, thereby cooperating with the inner support to clamp the workpiece, ensuring that the two sides of the L-shaped joint of the workpiece are mutually adhered, and limiting the movement of the workpiece, so as to meet the welding requirements and ensure the stability of the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic view of a positioning and clamping welding tool according to an embodiment of the present application before the workpiece is placed;

[0021] Figure 2 Fig. 6 shows a schematic diagram of the positioning and clamping welding tool according to the above embodiment of the present application in a state after the workpiece is put in;

[0022] Figure 3 Fig. 7 shows a schematic diagram of the positioning and clamping welding tool according to the above embodiment of the present application in a state when the linkage support is in place;

[0023] Figure 4 Fig. 8 shows a schematic diagram of the positioning and clamping welding tool according to the above embodiment of the present application in a state when the clamping is completed;

[0024] Figure 5 Fig. 9 shows a schematic diagram of the structure of the installation base frame in the positioning and clamping welding tool according to the above embodiment of the present application;

[0025] Figure 6 Fig. 10 shows a schematic diagram of the structure of the double-side pressing mechanism in the positioning and clamping welding tool according to the above embodiment of the present application.

[0026] Main element symbol explanation:

[0027] 10, positioning and clamping welding tool; 11, installation base frame; 111, installation base; 112, inner support; 113, outer support; 114, linkage support; 115, linkage guiding mechanism; 1151, slide support; 1152, guiding slide rail; 116, linkage driving mechanism; 1161, linkage push rod motor; 1162, linkage block; 12, inner positioning structure; 121, inner support mechanism; 1211, inner push rod motor; 1212, support block; 12121, front support surface; 12122, left support surface; 12123, right support surface; 1213, limiting block; 122, positioning block; 13, outer pressing structure; 131, single-side pressing mechanism; 1311, single-side push rod motor; 1312, single-side pressing block; 132, double-side pressing mechanism; 1321, vertical plate body; 1322, horizontal plate body; 1323, front-side pressing mechanism; 13231, front-side push rod motor; 13232, front-side pressing block; 1324, upper-side pressing mechanism; 13241, upper-side push rod motor; 13242, upper-side pressing block; 20, workpiece; 21, front panel; 22, left panel; 23, right panel.

[0028] The above main element symbol explanation, in combination with the accompanying drawings and specific embodiments, further details the present application. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more clear and understandable, the detailed description of the embodiments of the present application is made below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different ways from what is described herein, and with the same or similar results, and by one of ordinary skill in the art without departing from the scope of the present application, and therefore the present application is not limited to the details described below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0035] Considering that the existing fan box is usually punched and assembled by sheet metal, the size and position of the L-shaped joint seam on the fan box cannot be guaranteed to be stable, it is difficult to meet the welding requirements, and it brings great difficulty to the welding process, which seriously affects the manufacturing efficiency of the fan box. Therefore, the application creatively provides a positioning and clamping welding tool, which can guarantee that the L-shaped weld on the workpiece meets the welding requirements, and is convenient and fast to take and place, which is beneficial to improve the manufacturing efficiency.

[0036] Specifically, according to another aspect of the present application, as shown in Figures 1 to 6 An embodiment of the present application provides a positioning and clamping welding tool 10 for clamping a workpiece 20 with an L-shaped joint seam, ensuring that the two sides of the L-shaped joint seam are in close contact with each other, so that the size of the L-shaped joint seam is stable, and the gap size is uniform, so as to ensure the stability of the welding quality.

[0037] More specifically, as shown in Figures 1 to 4 The positioning and clamping welding tool 10 can include a mounting base 11, an internal positioning structure 12, and an external pressing structure 13. The mounting base 11 includes a mounting base 111, an internal support 112 fixed to the mounting base 111, an external support 113 fixed to the mounting base 111 and arranged in a left-right direction with the internal support 112, and a linkage support 114 slidably arranged in the external support 113. The internal positioning structure 12 includes an internal support mechanism 121 arranged in the internal support 112 for supporting and positioning from the inside of the workpiece 20. The external pressing structure 13 includes a one-sided pressing mechanism 131 arranged in the external support 113 for pressing from the left or right side of the workpiece 20, and a two-sided pressing mechanism 132 arranged in the linkage support 114 for pressing from the front and upper sides of the workpiece 20.

[0038] In this way, as shown in Figure 1 and Figure 2As shown, when the linkage bracket 114 slides relative to the outer bracket 113 to slide away from the inner bracket 112, the linkage bracket 114 can drive the double-sided pressing mechanism 132 to move away from the inner support mechanism 121 along the left-right direction to avoid the gap between the inner bracket 112 and the outer bracket 113, so as to facilitate the taking and placing of the workpiece 20 to the inner support mechanism 121, and ensure that the workpiece 20 does not interfere with the outer pressing structure 13 during taking and placing. In addition, as shown Figure 3 and Figure 4 After the workpiece 20 is placed outside the inner support mechanism 121, the inner support mechanism 121 can be supported and positioned from the inside of the workpiece 20 to ensure the overall dimensional stability of the workpiece 20; further, the single-sided pressing mechanism 131 can be pressed from the left side or the right side of the workpiece 20, and the double-sided pressing mechanism 132 is driven by the linkage bracket 114 to approach the inner support mechanism 121 to press from the front side and the upper side of the workpiece 20, thereby cooperating with the inner support mechanism 121 to clamp the workpiece 20, ensuring that the two sides of the L-shaped joint of the workpiece 20 are in close contact with each other, and limiting the movement of the workpiece 20, so as to meet the welding requirements and ensure the stability of the welding quality.

[0039] Notably, as shown Figures 2 to 4 The workpiece 20 generally includes a front panel 21, a left panel 22 bent rearward from the left side edge of the front panel 21, and a right panel 23 bent rearward from the right side edge of the front panel 21, to form L-shaped joints to be welded at the upper portions of the front panel 21 and the left panel 22 and the right panel 23, respectively. Therefore, as shown Figures 1 to 5 The outer bracket 113, the linkage bracket 114, the single-sided pressing mechanism 131, and the double-sided pressing mechanism 132 in the positioning and clamping welding tool 10 of the present application are provided in pairs; that is, two outer brackets 113 are symmetrically arranged on the left and right sides of the inner bracket 112 to serve as an outer left bracket and an outer right bracket, respectively; two linkage brackets 114 are provided one-to-one corresponding to the two outer brackets 113 to serve as a linkage left bracket connected to the outer left bracket and a linkage right bracket connected to the outer right bracket; two single-sided pressing mechanisms 131 are installed one-to-one corresponding to the two outer brackets 113 to serve as a left pressing mechanism for pressing the left panel 22 and a right pressing mechanism for pressing the right panel 23; and two double-sided pressing mechanisms 132 are installed one-to-one corresponding to the two linkage brackets 114 to press the left and right ends of the front panel 21 from the front side and the upper side of the workpiece 20.

[0040] In addition, as shown Figures 1 to 5As shown, the inner support 112 and the inner support mechanism 121 in the positioning and clamping welding tool 10 of the present application also appear in pairs; that is, two inner supports 112 are fixedly arranged at intervals along the left-right direction on the mounting base 111 between the two outer supports 113 to serve as an inner left support adjacent to the outer left support and an inner right support adjacent to the outer right support, respectively; and two inner support mechanisms 121 are installed one-to-one on the two inner supports 112 to serve as a left support mechanism supporting the left panel 22 and a right support mechanism supporting the right panel 23.

[0041] Optionally, as shown in Figure 1 and Figure 4 , the inner support mechanism 121 includes an inner push rod motor 1211 installed on the inner support 112, a support block 1212 fixedly connected with the push rod of the inner push rod motor 1211, and a limiting block 1213 arranged between the support block 1212 and the inner support 112, the two ends of the limiting block 1213 being limitingly connected to the support block 1212 and the inner support 112, respectively, for limiting the movement distance of the support block 1212 relative to the inner support 112 to achieve automatic positioning. In this way, after the workpiece 20 is placed in, the inner push rod motor 1211 pushes the support block 1212 to move left and right away from the inner support 112 until the limiting block 1213 limits the support block 1212 to stop moving; at this time, the support block 1212 supports the left panel 22 or the right panel 23 from the inside of the workpiece 20 to achieve quick support positioning and ensure that the size of the workpiece 20 remains stable.

[0042] Exemplarily, as shown in Figure 1 , the support block 1212 on the left side has a front support surface 12121 facing the front panel 21 and a left support surface 12122 facing the left panel 22; and the support block 1212 on the right side has a front support surface 12121 facing the front panel 21 and a right support surface 12123 facing the right panel 23. In this way, the front support surface 12121 of the support block 1212 can be slidably attached to the rear wall surface of the front panel 21, and the support block 1212 can slide along the front panel 21 under the push of the inner push rod motor 1211 until the left support surface 12122 or the right support surface 12123 of the support block 1212 supports the right wall surface of the left panel 22 or the left wall surface of the right panel 23.

[0043] Optionally, as shown in Figure 1 and Figure 4As shown, one end of the limiting block 1213 is fixedly connected to the support block 1212, and the other end of the limiting block 1213 is slidably hooked to the inner support 112. In this way, when the inner push rod motor 1211 pushes the support block 1212 to move left and right to move away from the inner support 112, the limiting block 1213 slides relative to the inner support 112 under the driving of the support block 1212; and when the support block 1212 supports the left panel 22 or the right panel 23 from the inside of the workpiece 20, the limiting block 1213 hooks the inner support 112 to limit the support block 1212 from continuing to move away from the inner support 112, so as to achieve the required quick support positioning.

[0044] It is worth noting that, although the L-shaped joint is usually located at the upper part of the workpiece 20, the inner support mechanism 121 and the outer pressing structure 13 of the present application can clamp the upper part of the workpiece 20 to ensure that the two sides of the L-shaped joint are in close contact with each other; however, the workpiece 20 usually has a large height, and it is difficult to ensure that the lower part of the workpiece 20 does not deviate when it is placed on the mounting base 111, which can adversely affect the clamping process of the workpiece 20. Based on this, as shown in the drawings, Figure 1 As shown, the inner positioning structure 12 of the present application also includes a positioning block 122 protruding from the mounting base 111, wherein the front side surface of the positioning block 122 is flush with the front support surface 12121 of the support block 1212, for positioning the lower part of the front panel 21 from the inside of the workpiece 20.

[0045] Alternatively, as shown in the drawings, Figure 1 The positioning block 122 in the positioning and clamping welding tool 10 also appears in pairs; that is, two positioning blocks 122 are fixedly arranged on the mounting base 111 along the left-right direction, wherein the left side surface of the positioning block 122 on the left side is parallel to the left support surface 12122 of the support block 1212 for supporting the left panel 22, and the right side surface of the positioning block 122 on the right side is parallel to the right support surface 12123 of the support block 1212 for supporting the right panel 23.

[0046] Preferably, when the limiting block 1213 limits the support block 1212 from continuing to move, the left side surface of the positioning block 122 on the left side is flush with the left support surface 12122 of the corresponding support block 1212, and the right side surface of the positioning block 122 on the right side is flush with the right support surface 12123 of the corresponding support block 1212.

[0047] According to the above embodiments of the present application, as shown in the drawings, Figure 3 and Figure 4As shown, the single-side pressing mechanism 131 can include a single-side push rod motor 1311 mounted to the outer support 113 and a single-side pressing block 1312 fixedly connected to a push rod of the single-side push rod motor 1311, the single-side pressing block 1312 being movable along the left-right direction under the action of the single-side push rod motor 1311, for pressing the left panel 22 or the right panel 23 to the corresponding support block 1212 to clamp the left panel 22 or the right panel 23.

[0048] Optionally, the single-side pressing block 1312 has a side pressing surface parallel to the left support surface 12122 or the right support surface 12123, for abuttingly pressing the left wall surface of the left panel 22 or the right wall surface of the right panel 23.

[0049] According to the above embodiments of the present application, as Figures 3 to 5 As shown, the mounting base 11 can further include a linkage guiding mechanism 115 disposed between the outer support 113 and the linkage support 114, the linkage guiding mechanism 115 including a slide support 1151 fixedly connected to the outer support 113 and a guiding slide rail 1152 fixedly connected to the linkage support 114 and extending along the left-right direction, the guiding slide rail 1152 being slidably embedded in the slide support 1151 to guide the linkage support 114 to slide relative to the outer support 113 along the left-right direction.

[0050] Optionally, as Figures 3 to 5 As shown, the mounting base 11 can further include a linkage driving mechanism 116 disposed between the outer support 113 and the linkage support 114, the linkage driving mechanism 116 including a linkage push rod motor 1161 mounted to the outer support 113 and / or the slide support 1151 and a linkage block 1162 fixedly connected to a push rod of the linkage push rod motor 1161, the linkage block 1162 being fixedly connected to the linkage support 114 to drive the linkage support 114 to move along the left-right direction under the action of the linkage push rod motor 1161, thereby driving the double-side pressing mechanism 132 to move away from or close to the inner positioning structure 12.

[0051] According to the above embodiments of the present application, as Figure 3 and Figure 6As shown, the bilateral pressing mechanism 132 can include a vertical plate body 1321 extending upward from the linkage bracket 114, a horizontal plate body 1322 extending left and right from the upper end of the vertical plate body 1321, a front side pressing mechanism 1323 installed on the vertical plate body 1321 and used for pressing the front panel 21 rearward, and an upper side pressing mechanism 1324 installed on the horizontal plate body 1322 and used for pressing the front panel 21 downward, so as to cooperate with the internal positioning structure 12 and the mounting base 111 to clamp the front panel 21 of the workpiece 20 from the front-rear direction and the up-down direction respectively, so as to ensure that the L-shaped joint meets the welding requirements for subsequent welding.

[0052] Optionally, as shown in Figure 6 The front side pressing mechanism 1323 includes a front side push rod motor 13231 installed on the vertical plate body 1321 and a front side pressing block 13232 fixedly connected with the push rod of the front side push rod motor 13231; wherein the front side pressing block 13232 moves along the front-rear direction under the drive of the front side push rod motor 13231, and is used for pressing the front panel 21 rearward on the corresponding support block 1212 to clamp the front panel 21 in the front-rear direction.

[0053] Optionally, the front side pressing block 13232 has a convex structure for matching the upper pressing groove of the front panel 21, so as to extend into the upper pressing groove of the front panel 21 for pressing, which helps to ensure that the size and position of the L-shaped joint are stable and meet the welding requirements.

[0054] Optionally, as shown in Figure 6 The upper side pressing mechanism 1324 includes an upper side push rod motor 13241 installed on the horizontal plate body 1322 and an upper side pressing block 13242 fixedly connected with the push rod of the upper side push rod motor 13241; wherein the upper side pressing block 13242 moves along the up-down direction under the drive of the upper side push rod motor 13241, and is used for pressing the front panel 21 downward on the mounting base 111 to clamp the front panel 21 in the up-down direction.

[0055] In summary, the working process of the positioning and clamping welding tool 10 of the present application is as follows: first, as shown in Figure 2 The workpiece 20 is placed on the mounting base 111 from the front side, so that the workpiece 20 is located outside the internal positioning structure 12; then, as shown in Figure 3 The internal support mechanism 121 in the internal positioning structure 12 is supported outward to position; then, as shown in Figure 4 The two unilateral pressing mechanisms 131 in the external pressing structure 13 are pressed tightly from the left and right sides respectively to cooperate with the internal support mechanism 121 to clamp the left panel 22 and the right panel 23 of the workpiece 20; then, as shown in Figure 4As shown, the linkage support 114 is driven by the linkage driving mechanism 116 to drive the double-side pressing mechanism 132 in the external pressing structure 13 to move into position; then, as shown, Figure 4 As shown, the front-side pressing mechanism 1323 in the double-side pressing mechanism 132 is pressed from the front side into position to cooperate with the internal support mechanism 121 to clamp the front panel 21 of the workpiece 20 in the front-rear direction; finally, as shown, Figure 4 As shown, the upper-side pressing mechanism 1324 in the double-side pressing mechanism 132 is pressed from the upper side into position to cooperate with the mounting base 111 to clamp the front panel 21 of the workpiece 20 in the up-down direction. In this way, the positioning and clamping welding tool 10 can ensure that the L-shaped joint meets the welding requirements, so as to open the tool after welding and take out the workpiece 20.

[0056] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0057] The above embodiments only express several implementation manners of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A fixture for positioning and clamping a workpiece having an L-shaped seam, comprising: The mounting base includes a mounting base, an inner support fixed to the mounting base, an outer support fixed to the mounting base and spaced apart from the inner support along the left-right direction, and a linkage support slidably arranged in the outer support along the left-right direction; The inner positioning structure includes an inner support mechanism arranged in the inner support for supporting and positioning from the inner side of the workpiece; and The outer pressing structure includes a single-side pressing mechanism arranged in the outer support for pressing from the left or right side of the workpiece, and a double-side pressing mechanism arranged in the linkage support for pressing from the front and upper sides of the workpiece. Two outer supports are arranged on the left and right sides of the inner support; two linkage supports are arranged in the outer supports one by one; two single-side pressing mechanisms are installed in the outer supports one by one; and two double-side pressing mechanisms are installed in the linkage supports one by one.

2. The fixture of claim 1, wherein, Two inner supports are fixed to the mounting base and located between the two outer supports along the left-right direction; and two inner support mechanisms are installed in the inner supports one by one.

3. The fixture of claim 2, wherein, The inner support mechanism includes an inner push rod motor installed in the inner support, a support block fixedly connected to the push rod of the inner push rod motor, and a limiting block arranged between the support block and the inner support; the two ends of the limiting block are respectively limitedly connected to the support block and the inner support, for limiting the movement distance of the support block relative to the inner support to automatically position.

4. The fixture of claim 3, wherein, The inner support mechanism further includes a positioning block protruding from the mounting base, and the front surface of the positioning block is flush with the front support surface of the support block; two positioning blocks are fixed to the mounting base along the left-right direction to correspond to the two support blocks, respectively; the left surface of the positioning block on the left side is parallel to the left support surface of the corresponding support block, and the right surface of the positioning block on the right side is parallel to the right support surface of the corresponding support block.

5. The fixture of claim 4, wherein, The single-side pressing mechanism includes a single-side push rod motor installed in the outer support and a single-side pressing block fixedly connected to the push rod of the single-side push rod motor, which moves along the left-right direction under the action of the single-side push rod motor, for pressing the left or right panel of the workpiece.

6. The fixture of any one of claims 1 to 5, wherein, The mounting base further includes a linkage guide mechanism arranged between the outer support and the linkage support; the linkage guide mechanism includes a slide support fixedly connected to the outer support and a guide slide rail fixedly connected to the linkage support and extending along the left-right direction, and the guide slide rail is slidably embedded in the slide support.

7. The fixture of any one of claims 1 to 5, wherein, ​ 8. The fixture of claim 7, wherein, The mounting base further comprises a linkage driving mechanism arranged between the outer support and the linkage support; wherein the linkage driving mechanism comprises a linkage push rod motor mounted on the outer support and / or the slide support, and a linkage block fixedly connected with a push rod of the linkage push rod motor, and the linkage block is fixedly connected with the linkage support to drive the linkage support to move along the left-right direction under the pushing of the linkage push rod motor.

9. The fixture of any one of claims 1 to 5, wherein, The double-side pressing mechanism comprises a vertical plate body extending upward from the linkage support, a horizontal plate body extending leftward and rightward from an upper end of the vertical plate body, a front-side pressing mechanism mounted on the vertical plate body and used for pressing a front face plate of the workpiece rearward, and an upper-side pressing mechanism mounted on the horizontal plate body and used for pressing the front face plate downward.

10. The fixture of claim 9, wherein, The front-side pressing mechanism comprises a front-side push rod motor mounted on the vertical plate body and a front-side pressing block fixedly connected with a push rod of the front-side push rod motor, wherein the front-side pressing block moves along the front-rear direction under the driving of the front-side push rod motor, and is used for pressing the front face plate rearward; and the upper-side pressing mechanism comprises an upper-side push rod motor mounted on the horizontal plate body and an upper-side pressing block fixedly connected with a push rod of the upper-side push rod motor, wherein the upper-side pressing block moves along the up-down direction under the driving of the upper-side push rod motor, and is used for pressing the front face plate downward.

Images