Traction clamp structure and photovoltaic series welding machine with same

Abstract

The utility model discloses a traction clamp structure and a photovoltaic series welding machine with the traction clamp structure, the traction clamp structure comprises a base, a plurality of clamp bodies distributed at equal intervals are arranged on the base, each clamp body comprises a first clamp arm and a second clamp arm which are distributed side by side, the first clamp arm and the second clamp arm can be close to each other or far away from each other, and the first clamp arm and the second clamp arm are connected with each other. The clamping body has a clamping state and a loosening state; wherein the plurality of clamp bodies are distributed at the same height, the adjacent clamp bodies are partially overlapped in the distribution direction of the clamp bodies, and avoiding areas are arranged on the first clamp arm and the second clamp arm.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic cell production equipment, and specifically relates to a traction clamp structure and a photovoltaic string welding machine having the same. Background Art

[0002] The traction clamp is an important component of the photovoltaic string welding machine, which is used to clamp the welding strip of the battery cell. The traction clamp generally includes a plurality of clamps arranged side by side, each of which can clamp a welding strip. In order to be able to clamp more welding strips, the number of clamps is large, resulting in a larger size of the traction clamp in the distribution direction of the clamps, which leads to a complicated structure of the photovoltaic string welding machine and a large space occupation. Therefore, it is necessary to improve the prior art to overcome the above-mentioned defects in the prior art. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to provide a compact traction clamp structure and a photovoltaic string welding machine having the same.

[0004] In order to solve the above technical problems, the utility model provides a traction clamp structure, which comprises: a base, on which a plurality of equally spaced clamps are arranged, each of which comprises a first clamp arm and a second clamp arm arranged side by side, the first clamp arm and the second clamp arm can be close to each other or away from each other, so that the clamp has a clamping state and a loose state; wherein the plurality of clamps are arranged at the same height, and adjacent clamps partially overlap in their distribution direction, and the first clamp arm and the second clamp arm are provided with an avoidance area;

[0005] The first clamp arm is provided with a first avoidance area, the second clamp arm is provided with a second avoidance area, and the first avoidance area and the second avoidance area are open grooves; wherein, in the opening and closing direction of the clamp body, part of the first clamp arm is accommodated in the second avoidance area, and part of the second clamp arm is accommodated in the first avoidance area;

[0006] The first avoidance area forms a first rib on the lateral side of the first clamp arm, and the second avoidance area forms a second rib on the lateral side of the second clamp arm.

[0007] Preferably, the base comprises a first substrate and a second substrate, the first substrate is provided with the first clamping arms, and a plurality of the first clamping arms are arranged at equal intervals along the length direction of the base;

[0008] The second clamping arms are arranged on the second substrate, and a plurality of the second clamping arms are arranged at equal intervals along the length direction of the base, and the first clamping arms are alternately distributed with the second clamping arms;

[0009] The first substrate is connected to a first driving unit, the second substrate is connected to a second driving unit, and the first driving unit and the second driving unit are configured to provide linear reciprocating motion.

[0010] Preferably, the first clamping arm is rotatably disposed on the first substrate, and the second clamping arm is fixedly disposed on the second substrate;

[0011] Among them, an elastic member is provided between the first clamp arm and the base, or between the first clamp arm and the second clamp arm, the distribution direction of the elastic member is consistent with the opening and closing direction of the clamp body, and the elastic member is configured to reduce the influence of the force applied to the first clamp arm and the second clamp arm during the clamping process.

[0012] Preferably, the first clamp arm is rotatably disposed on the first substrate via a pin shaft, a connecting block is disposed above the first clamp arm, the connecting block is fixed relative to the first substrate, and the first clamp arm is limited on the first substrate via the connecting block;

[0013] The first clamping arm is provided with a pin hole for the pin shaft to pass through, the first base plate is provided with a lower plug hole matching with the bottom of the pin shaft, and the connecting block is provided with an upper plug hole matching with the top of the pin shaft.

[0014] Preferably, the bottom end surface of the connecting block is recessed upward to form a limiting groove having the same width as the first clamping arm.

[0015] Preferably, the first substrate is provided with receiving grooves, and the receiving grooves are distributed in a one-to-one correspondence with the first clamping arms;

[0016] The first clamping arm has a front clamping section and a rear tail section, the pin hole is located between the front clamping section and the rear tail section, the rear tail section is located in the receiving groove, the rear tail section is provided with a groove for accommodating one end of the elastic member, the other end of the elastic member abuts against the first groove wall of the receiving groove, and the rear tail section abuts against the second groove wall of the receiving groove under the action of the elastic member.

[0017] Preferably, the first clamp arm is provided with a first avoidance area, and the first avoidance area is located at the bottom of the first clamp arm, so that the vertical cross-section of the first clamp arm is "L"-shaped;

[0018] The second clamping arm is provided with a second avoidance area, and the second avoidance area is located at the top of the second clamping arm, so that the vertical cross-section of the second clamping arm is "L"-shaped.

[0019] The utility model also provides a photovoltaic string welding machine, which comprises the traction clamp structure as described above.

[0020] The technical solution provided by the utility model has the following advantages:

[0021] By setting an avoidance area on the first clamp arm and the second clamp arm, adjacent clamps partially overlap in their distribution direction, thereby effectively reducing the size of the multiple clamps in their distribution direction, which is beneficial to the miniaturization of the traction clamp structure and has the advantage of compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A three-dimensional structural schematic diagram of the traction clamp structure provided by the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the partial structure of

[0025] Figure 3 for Figure 1 Schematic diagram of the decomposition structure;

[0026] Figure 4 is a schematic diagram of the exploded structure between the first substrate and the first clamping arm;

[0027] Figure 5 is a schematic diagram of the connection block in the upward direction;

[0028] Figure 6 is a schematic diagram of the first clamping arm in a top view;

[0029] Figure 7 is a schematic diagram of the first clamping arm in the upward direction;

[0030] Figure 8 for Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0031] Fig. 9 for Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0032] Fig.10 It is a schematic diagram of the first clamping arm and the second clamping arm when the number of the first avoidance area and the second avoidance area is at least two. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0035] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0036] Embodiment 1

[0037] The utility model provides a traction clamp structure, which is used to clamp a welding strip. Of course, the traction clamp structure includes but is not limited to the photovoltaic field, and can also be applied to other fields that require clamping objects, such as non-standard production lines, welding equipment, installation production lines, etc.

[0038] like Figures 1 to 3 As shown, the traction clamp structure comprises: a base 200 and a plurality of clamp bodies 100, wherein the plurality of clamp bodies 100 are distributed at equal heights on the base 200. Preferably, the plurality of clamp bodies 100 are distributed at equal intervals on the base 200. Each clamp body 100 comprises a first clamp arm 110 and a second clamp arm 120 distributed side by side, wherein the first clamp arm 110 and the second clamp arm 120 can be close to each other or away from each other, so that the clamp body 100 has a clamping state and a loosening state.

[0039] The plurality of clamps 100 may be directly disposed on the base 200, or may be disposed on the base 200 via an adapter (not shown). Figure 3 As shown, in one embodiment, when a plurality of clamping bodies 100 are directly disposed on a base 200, the base 200 includes a first substrate 210 and a second substrate 220. A plurality of first clamping arms 110 are arranged side by side on the first substrate 210, and the plurality of first clamping arms 110 are arranged at equal intervals along the length direction of the base 200. A plurality of second clamping arms 120 are arranged side by side on the second substrate 220, and the plurality of second clamping arms 120 are arranged at equal intervals along the length direction of the base 200. The first clamping arms 110 and the second clamping arms 120 are arranged alternately.

[0040] In order to realize the relative movement between the first clamping arm 110 and the second clamping arm 120, the first substrate 210 is connected to a first driving unit (not shown), and the second substrate 220 is connected to a second driving unit (not shown), wherein the first driving unit and the second driving unit are used to provide linear reciprocating motion, such as a cylinder, a linear module, a ball screw, etc. Preferably, the first driving unit and the second driving unit are cylinders. Thus, the synchronous movement of multiple clamps 100 is realized through the movement of the first substrate 210 and the second substrate 220.

[0041] In another embodiment, when multiple clamp bodies 100 are arranged on the base 200 through an adapter, the adapter includes a first adapter (not shown) and a second adapter (not shown). Among them, multiple first clamp arms 110 are arranged side by side on the first adapter, and multiple second clamp arms 120 are arranged side by side on the second adapter. Both the first adapter and the second adapter can perform linear reciprocating motion, so as to achieve a state where the first clamp arms 110 and the second clamp arms 120 are close to each other or away from each other. The following is an example of a case where multiple clamp bodies 100 are directly arranged on the base 200.

[0042] Regarding the structures of the first clamping arm 110 and the second clamping arm 120, as shown in FIG. Figure 3 and Figure 4 As shown, the first clamp arm 110 is rotatably disposed on the first substrate 210, and the second clamp arm 120 is fixedly disposed on the second substrate 220. Specifically, the first clamp arm 110 is rotatably disposed on the first substrate 210 through the pin shaft 130, and a connecting block 400 is disposed above the first clamp arm 110, and the connecting block 400 is fixed relative to the first substrate 210, and the first clamp arm 110 is limited on the first substrate 210 through the connecting block 400.

[0043] The connection block 400 is fixed on the first substrate 210 by a fastener 500, and the fastener 500 may be a bolt, a screw, etc. Figure 5 As shown, the bottom end surface of the connecting block 400 is recessed upward to form a limiting groove 420 having the same width as the first clamping arm 110. Thus, during installation, the positional relationship between the connecting block 400 and the first clamping arm 110 can be more conveniently limited, which has the advantage of easy installation.

[0044] like Figures 4 to 7 As shown, the first clamp arm 110 is provided with a pin hole 113 for the pin shaft 130 to pass through, the first substrate 210 is provided with a lower plug hole 211 that matches the bottom of the pin shaft 130, and the connecting block 400 is provided with an upper plug hole 410 that matches the top of the pin shaft 130. When the connecting block 400 is fixed to the first substrate 210 by the fastener 500, the first clamp arm 110 can be rotatably arranged on the first substrate 210 through the pin shaft 130.

[0045] It is worth noting that there are multiple connection blocks 400 in the length direction of the first substrate 210, and the multiple connection blocks 400 are arranged in sequence along the length direction of the first substrate 210, so as to realize that multiple first clamping arms 110 are arranged on the first substrate 210. The purpose of avoiding the use of a long-length whole block for the connection block 400 is that when the length of the connection block 400 is long, it is necessary to ensure the processing accuracy of each upper plug hole 410, thereby increasing the processing difficulty of the connection block 400.

[0046] The extension direction of the first clamp arm 110 is substantially parallel to the extension direction of the second clamp arm 120. In order to reduce the influence of the force on the first clamp arm 110 and the second clamp arm 120 when clamping the solder strip, as shown in FIG. Figures 1 to 4 As shown, an elastic member 300 is provided between the first clamp arm 110 and the base 200, or between the first clamp arm 110 and the second clamp arm 120, and the distribution direction of the elastic member 300 is consistent with the opening and closing direction of the clamp body 100. The elastic member 300 can be a spring, or a rubber pad with a certain elasticity, or an airbag filled with gas, or other devices with a buffering effect. Preferably, the elastic member 300 is a spring. The following description is made by taking the elastic member 300 as a spring as an example.

[0047] Furthermore, if Figure 4 , Figure 6 and Fig. 9 As shown, a receiving groove 212 is provided on the first substrate 210, and the receiving groove 212 is distributed one by one with the first clamping arm 110. The first clamping arm 110 has a front clamping section 111 and a rear tail section 112, and the pin hole 113 is located between the front clamping section 111 and the rear tail section 112, and the rear tail section 112 is located in the receiving groove 212. The rear tail section 112 is provided with a groove 1121 for accommodating one end of the elastic member 300, and the other end of the elastic member 300 is against the first groove wall 2121 of the receiving groove 212. Under the action of the elastic member 300, the rear tail section 112 is against the second groove wall 2122 of the receiving groove 212.

[0048] When the clamp body 100 is in a loose state, there is a distance between the first clamp arm 110 and the second clamp arm 120 of the same clamp body 100 in the length direction of the base 200. When the clamp body 100 changes from a loose state to a clamped state, the first clamp arm 110 and the second clamp arm 120 approach each other until they abut against each other, thereby clamping the welding strip. When the first clamp arm 110 and the second clamp arm 120 abut against each other, a certain impact force will be generated between the first clamp arm 110 and the second clamp arm 120, and the first clamp arm 110 deflects after receiving the force. After the first clamp arm 110 deflects, the elastic member 300 is compressed. In the above process, the elastic member 300 can buffer the force applied to the first clamp arm 110 and the second clamp arm 120, thereby reducing the influence of the force on the first clamp arm 110 and the second clamp arm 120.

[0049] like Figure 7 and Figure 8 As shown, the front end of the front clamping section 111 away from the side of the second clamping arm 120 is provided with a first chamfer 117, and correspondingly, the front end of the side of the second clamping arm 120 away from the first clamping arm 110 is provided with a second chamfer 123. The first chamfer 117 and the second chamfer 123 can not only reduce stress concentration but also optimize spatial distribution.

[0050] In this embodiment, avoidance areas are provided on the first clamp arm 110 and the second clamp arm 120, and adjacent clamp bodies 100 partially overlap in their distribution direction, thereby effectively reducing the size of the plurality of clamp bodies 100 in their distribution direction, which is conducive to the miniaturization of the traction clamp structure.

[0051] Specifically, Figures 7 to 10 As shown, the first clamp arm 110 is provided with a first avoidance area 115, and the second clamp arm 120 is provided with a second avoidance area 121, and the first avoidance area 115 and the second avoidance area 121 are open grooves. In the opening and closing direction of the clamp body 100, part of the first clamp arm 110 is accommodated in the second avoidance area 121, and part of the second clamp arm 120 is accommodated in the first avoidance area 115, thereby effectively utilizing the space on the base 200, and more clamp bodies 100 can be arranged under the same space; or in other words, when the same number of clamp bodies 100 are arranged, the size of the base 200 can be reduced.

[0052] The first avoidance area 115 forms a first rib 116 on the side of the first clamp arm 110, and the second avoidance area 121 forms a second rib 122 on the side of the second clamp arm 120. In other words, the first clamp arm 110 and the second clamp arm 120 can not only form an advantage in space, but also do not weaken the structural strength of the first clamp arm 110 and the second clamp arm 120 in the opening and closing direction.

[0053] The number of the first avoidance areas 115 is the same as the number of the second avoidance areas 121. The number of the first avoidance areas 115 on the first clamping arm 110 can be one, two, or more. Similarly, the number of the second avoidance areas 121 on the second clamping arm 120 can be one, two, or more.

[0054] like Fig.10As shown, when the number of the first avoidance areas 115 on the first clamping arm 110 is at least two, at least two first avoidance areas 115 are evenly spaced in the upper and lower directions of the first clamping arm 110, the first ribs 116 are formed between adjacent first avoidance areas 115, and the first avoidance areas 115 and the first ribs 116 are alternately distributed. Similarly, at least two second avoidance areas 121 are evenly spaced in the upper and lower directions of the second clamping arm 120, the second ribs 122 are formed between adjacent second avoidance areas 121, and the second avoidance areas 121 and the second ribs 122 are alternately distributed.

[0055] Preferably, if Figure 2 , Figure 7 and Figure 8 As shown, the number of the first avoidance area 115 and the number of the second avoidance area 121 are both one. That is, the first arm 110 is provided with a first avoidance area 115, and the second arm 120 is provided with a second avoidance area 121. The first avoidance area 115 is located at the bottom of the first arm 110, and the first rib plate 116 is located above the first avoidance area 115, so that the vertical cross-section of the first arm 110 is "L"-shaped. The second avoidance area 121 is located at the top of the second arm 120, and the second rib plate 122 is located below the second avoidance area 121, so that the vertical cross-section of the second arm 120 is "L"-shaped.

[0056] Embodiment 2

[0057] The utility model further provides a photovoltaic string welding machine (not shown), which includes the traction clamp structure described in the first embodiment.

[0058] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A traction clamp structure, characterized in that: include: A base (200) is provided with a plurality of equally spaced clamping bodies (100), each of the clamping bodies (100) comprising a first clamping arm (110) and a second clamping arm (120) arranged side by side, the first clamping arm (110) and the second clamping arm (120) being able to move closer to or farther from each other, so that the clamping body (100) has a clamping state and a loosening state; Wherein, the plurality of clamping bodies (100) are distributed at the same height, and adjacent clamping bodies (100) partially overlap in their distribution direction, and avoidance areas are provided on the first clamping arm (110) and the second clamping arm (120); The first clamp arm (110) is provided with a first avoidance area (115), and the second clamp arm (120) is provided with a second avoidance area (121), and the first avoidance area (115) and the second avoidance area (121) are open grooves; Wherein, in the opening and closing direction of the clamp body (100), part of the first clamp arm (110) is accommodated in the second avoidance area (121), and part of the second clamp arm (120) is accommodated in the first avoidance area (115); The first avoidance area (115) forms a first rib plate (116) on the lateral side of the first clamping arm (110), and the second avoidance area (121) forms a second rib plate (122) on the lateral side of the second clamping arm (120).

2. The traction clamp structure according to claim 1, characterized in that: The base (200) comprises a first substrate (210) and a second substrate (220); the first substrate (210) is provided with the first clamping arms (110); a plurality of the first clamping arms (110) are arranged at equal intervals along the length direction of the base (200); The second clamping arms (120) are provided on the second substrate (220), and a plurality of the second clamping arms (120) are arranged at equal intervals along the length direction of the base (200), and are distributed alternately between the first clamping arms (110) and the second clamping arms (120); The first substrate (210) is connected to a first drive unit, the second substrate (220) is connected to a second drive unit, and the first drive unit and the second drive unit are configured to provide linear reciprocating motion.

3. The traction clamp structure according to claim 2, characterized in that: The first clamping arm (110) is rotatably mounted on the first substrate (210), and the second clamping arm (120) is fixedly mounted on the second substrate (220); An elastic member (300) is provided between the first clamp arm (110) and the base (200), or between the first clamp arm (110) and the second clamp arm (120), wherein the distribution direction of the elastic member (300) is consistent with the opening and closing direction of the clamp body (100), and the elastic member (300) is configured to reduce the influence of the force applied to the first clamp arm (110) and the second clamp arm (120) during the clamping process.

4. The traction clamp structure according to claim 3, characterized in that: The first clamping arm (110) is rotatably disposed on the first substrate (210) via a pin shaft (130); a connecting block (400) is provided above the first clamping arm (110); the connecting block (400) is fixed relative to the first substrate (210); and the first clamping arm (110) is limited on the first substrate (210) by the connecting block (400); The first clamping arm (110) is provided with a pin hole (113) for the pin shaft (130) to pass through, the first base plate (210) is provided with a lower plug hole (211) that cooperates with the bottom of the pin shaft (130), and the connecting block (400) is provided with an upper plug hole (410) that cooperates with the top of the pin shaft (130).

5. The traction clamp structure according to claim 4, characterized in that: The bottom end surface of the connection block (400) is recessed upward to form a limiting groove (420) having the same width as the first clamping arm (110).

6. The traction clamp structure according to claim 4, characterized in that: The first substrate (210) is provided with a receiving groove (212), and the receiving grooves (212) are distributed in a one-to-one correspondence with the first clamping arms (110); The first clamping arm (110) comprises a front clamping section (111) and a rear tail section (112); the pin hole (113) is located between the front clamping section (111) and the rear tail section (112); the rear tail section (112) is located in the receiving groove (212); the rear tail section (112) is provided with a groove (1121) for receiving one end of the elastic member (300); the other end of the elastic member (300) abuts against a first groove wall (2121) of the receiving groove (212); and the rear tail section (112) abuts against a second groove wall (2122) of the receiving groove (212) under the action of the elastic member (300).

7. The traction clamp structure according to claim 1, characterized in that: The first clamping arm (110) is provided with a first avoidance area (115), and the first avoidance area (115) is located at the bottom of the first clamping arm (110), so that the vertical cross-section of the first clamping arm (110) is "L"-shaped; The second clamping arm (120) is provided with a second avoidance area (121), and the second avoidance area (121) is located at the top of the second clamping arm (120), so that the vertical cross-section of the second clamping arm (120) is "L"-shaped.

8. A photovoltaic string welding machine, characterized in that: The invention comprises a traction clamp structure as claimed in any one of claims 1 to 7.

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