Clamp and welding equipment

Abstract

The utility model belongs to the technical field of battery processing, and particularly relates to a clamp and welding equipment, and the clamp comprises a support, a first welding rod, a second welding rod and a clamping device, the clamping assembly comprises a first clamping piece and a second clamping piece which are used for clamping a workpiece, the first clamping piece and the second clamping piece are oppositely installed on the upper surface of the support, and the first clamping piece and the second clamping piece are located on the side of the first welding hole; the anti-falling assembly comprises a driving piece, a rotating arm and a bearing piece, the driving piece is installed on the lower surface of the support, the rotating arm is connected with the bearing piece, the bearing piece is used for bearing a falling workpiece, and the rotating arm is connected with the bearing piece. And the driving part is in transmission connection with the rotating arm to drive the rotating arm to rotate so that the bearing part can be located below the position between the first clamping part and the second clamping part, the workpiece can be prevented from falling off in the process that the clamp clamps the workpiece, and the equipment failure rate is reduced.

Description

Technical Field

[0001] The present application belongs to the field of battery processing technology, and more specifically, to a clamp and welding equipment. Background Art

[0002] The power battery needs to have its top cover pre-welded, and the power battery needs to be positioned and clamped by a clamp before pre-welding. Before pre-welding, the carrier that transports the power battery will move under the clamp, and the carrier will be lifted by a lifting device so that the power battery on the carrier can be clamped by the clamp. The clamp generally clamps the power battery by abutting against the side of the power battery. However, when the clamp is moving at high speed, the power battery may fall due to air pressure fluctuations or other sudden reasons. The fallen power battery may collide and damage other mechanisms, resulting in an increase in the equipment failure rate. Utility Model Content

[0003] The embodiments of the present application provide a clamp and a welding device, which can prevent a workpiece from falling when the clamp is clamping the workpiece, thereby reducing the equipment failure rate.

[0004] The technical solution adopted in the embodiment of the present application is: to provide a clamp, including:

[0005] A bracket, wherein a first welding hole is provided on the bracket;

[0006] A clamping assembly, the clamping assembly comprising a first clamping member and a second clamping member for clamping a workpiece, the first clamping member and the second clamping member are relatively mounted on the upper surface of the bracket, the first clamping member and the second clamping member are located on the side of the first welding hole; and at least one

[0007] An anti-drop assembly, the anti-drop assembly includes a driving member, a rotating arm and a supporting member, the driving member is installed on the lower surface of the bracket, the rotating arm is connected to the supporting member, the supporting member is used to support the falling workpiece, the driving member is connected to the rotating arm to drive the rotating arm to rotate so that the supporting member is located below between the first clamping member and the second clamping member.

[0008] Optionally, an angle between a side wall of the rotating arm close to the first welding hole and a supporting surface of the supporting member for supporting a workpiece is an obtuse angle.

[0009] Optionally, an angle between a side wall of the rotating arm close to the first welding hole and a supporting surface of the supporting member for supporting a workpiece is 135°.

[0010] Optionally, the driving member includes a rotating shaft, a driving part, a rack and a gear, the gear is provided with a first socket, the rotating shaft is inserted into the first socket of the gear, the rotating shaft is connected to the rotating arm, the rack is meshed with the gear, the driving part is installed on the lower surface of the bracket, and the driving part is connected to the rack to drive the gear to drive the rotating shaft to rotate.

[0011] Optionally, an anti-loosening member is provided on the gear, and the anti-loosening member is used to prevent the gear from rotating on the rotating shaft.

[0012] Optionally, the anti-loosening part includes a fixing part and a tightening part, the fixing part is connected to the gear, the fixing part is provided with a through hole for passing the rotating shaft, the through hole is connected to the first socket on the gear, and the side wall of the fixing part is provided with a threaded hole for threaded connection with the tightening part, the tightening part is inserted into the threaded hole and abuts against the side wall of the rotating shaft to prevent the gear from rotating on the rotating shaft.

[0013] Optionally, the driving member also includes a guide portion, the guide portion includes a guide sub-portion and a sliding sub-portion, the guide sub-portion is slidably connected to the sliding sub-portion, the guide sub-portion is mounted on the bracket, and the sliding sub-portion of the guide portion is connected to the rack to prevent the rack from shifting during movement.

[0014] Optionally, a buffer portion is provided on a surface of the supporting member that is in contact with the workpiece.

[0015] An embodiment of the present application further provides a welding device, comprising the clamp described above, and also comprising a welding device, wherein the welding device is used to weld a workpiece clamped by the clamp.

[0016] Optionally, the welding equipment further includes a moving device and a carrier, the carrier is used to load the workpiece, the moving device is used to move the carrier, and the clamp is used to clamp the workpiece in the carrier.

[0017] The clamp and welding equipment provided by the embodiment of the present application have the following beneficial effects: when the clamping assembly of the clamp of the embodiment of the present application does not clamp the workpiece, the rotating arm of the anti-drop assembly is in contact with the lower surface of the bracket to avoid the workpiece, and when the clamping assembly clamps the workpiece in the first welding hole, the driving member of the anti-drop assembly rotates the rotating arm so that the supporting member is located below the workpiece, and the supporting member of the anti-drop assembly can support the workpiece when the workpiece falls, so as to prevent the workpiece from falling and damaging other mechanisms, thereby reducing the equipment failure rate;

[0018] Since the welding equipment of the embodiment of the present application includes the above-mentioned clamp, it has the beneficial effects brought by the above-mentioned clamp, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 A schematic diagram of the bottom structure of the clamp provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of the anti-drop assembly provided in an embodiment of the present application in a workpiece-supporting state;

[0022] Figure 3 A schematic diagram of the structure of the anti-drop assembly provided in an embodiment of the present application in a workpiece avoiding state;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of the welding equipment provided in an embodiment of the present application.

[0024] Among them, the reference numerals in the figure are:

[0025] 1. bracket; 11. first welding hole;

[0026] 2. Clamping assembly; 21. First clamping member; 22. Second clamping member;

[0027] 3. Anti-drop assembly; 31. Driving member; 32. Rotating arm; 33. Supporting member;

[0028] 311, rotating shaft; 312, driving part; 313, rack; 314, gear; 315, anti-loosening part; 316, guide part; 331, buffer part;

[0029] 3151, fixing portion; 3152, tightening portion;

[0030] 4. Mobile device; 5. Vehicle. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] See also Figures 1 to 4 , the clamp provided by the embodiment of the present application is now described. The clamp provided by the embodiment of the present application includes: a bracket 1, a clamping assembly 2 and at least one anti-drop assembly 3. The bracket 1 is provided with a first welding hole 11, the clamping assembly 2 includes a first clamping member 21 and a second clamping member 22 for clamping a workpiece, the first clamping member 21 and the second clamping member 22 are relatively installed on the upper surface of the bracket 1, the first clamping member 21 and the second clamping member 22 are located on the side of the first welding hole 11, the anti-drop assembly 3 includes a driving member 31, a rotating arm 32 and a supporting member 33, the driving member 31 is installed on the lower surface of the bracket 1, the rotating arm 32 is connected to the supporting member 33, the supporting member 33 is used to support the falling workpiece, the driving member 31 is connected to the rotating arm 32 in a transmission manner to drive the rotating arm 32 to rotate so that the supporting member 33 is located below between the first clamping member 21 and the second clamping member 22.

[0036] The workpiece in the embodiment of the present application can be a battery, a battery cell or other workpieces. The fixture of the present application is mainly used for positioning during pre-welding of the battery top cover. When the clamping assembly 2 does not clamp the workpiece, the rotating arm 32 of the anti-drop assembly 3 fits with the lower surface of the bracket 1 to avoid the workpiece. When the carrier 5 carrying the battery is transported to the bottom of the fixture, the lifting device lifts the carrier 5, and the workpiece in the carrier 5 passes through the first welding hole 11 on the bracket 1 and comes between the first clamp 21 and the second clamp 22. The first clamp 21 and the second clamp 22 clamp the battery to achieve the side positioning of the battery to prevent the battery from moving during pre-welding. The driving member 31 of the anti-drop assembly 3 rotates the rotating arm 32 so that the supporting member 33 is located below the workpiece. The supporting member 33 of the anti-drop assembly 3 can support the workpiece when the workpiece falls to prevent the workpiece from falling and damaging other mechanisms, thereby reducing the equipment failure rate.

[0037] The first clamping member 21 may include a first driving portion and a first abutting portion, wherein the first driving portion drives the first abutting portion to move toward the second clamping member 22 to clamp the workpiece, and the first driving portion drives the first abutting portion to move away from the second clamping member 22 to release the workpiece. The first driving portion may be a linear motor or a cylinder. The second clamping member 22 may have the same structure as the first clamping member 21.

[0038] The second clamping member 22 may also include a mounting portion, a second connecting portion, and a second abutting portion, wherein the second connecting portion is mounted on the mounting portion, the second connecting portion and the second abutting portion are detachably connected, and the second abutting portion is used to abut against a workpiece. The second clamping member 22 also includes a mounting screw, wherein the mounting portion is provided with a mounting hole for threaded connection with the mounting screw, and the second connecting portion is provided with a waist-shaped hole, wherein the mounting screw is inserted into the waist-shaped hole and threadedly connected with the mounting hole to mount the second connecting portion on the mounting portion.

[0039] The driving member 31 may be a rotary cylinder or a rotary motor to realize the rotation of the rotating arm 32 .

[0040] In order to improve the stability of the anti-drop component 3 in supporting the workpiece, the number of the anti-drop components 3 in the embodiment of the present application is set to two, which are arranged relatively at the edge of the first welding port.

[0041] An angle between a side wall of the rotating arm 32 close to the first welding hole and a supporting surface of the supporting member 33 for supporting a workpiece is an obtuse angle.

[0042] When the clamping assembly 2 does not clamp the workpiece, the rotating arm 32 of the anti-drop assembly 3 needs to fit with the lower surface of the bracket 1 to avoid the workpiece. In order to prevent the supporting member 33 of the anti-drop assembly 3 from protruding too much from the lower surface of the bracket 1, the angle between the rotating arm 32 and the supporting member 33 is set to an obtuse angle, which reduces the possibility of the supporting member 33 interfering with other equipment or workpieces in space. When the length of the supporting member 33 is constant, if the angle between the supporting member 33 and the rotating arm 32 is a right angle, the height of the supporting member 33 perpendicular to the lower surface of the bracket 1 is the highest, and the possibility of interfering with other equipment or workpieces in space is the highest. If the angle between the supporting member 33 and the rotating arm 32 is an acute angle, the contact surface between the supporting member 33 and the workpiece is reduced, the pressure of the workpiece when it falls becomes larger, and the supporting member 33 may damage the workpiece when supporting it, thereby increasing the wear rate of the workpiece.

[0043] Preferably, the angle between the side wall of the rotating arm 32 close to the first welding hole and the supporting surface of the supporting member 33 for supporting the workpiece is 135°.

[0044] Preferably, see Figure 2 , Figure 3 The driving member 31 includes a rotating shaft 311, a driving part 312, a rack 313 and a gear 314. The gear 314 is provided with a first plug hole. The rotating shaft 311 is inserted into the first plug hole of the gear 314. The rotating shaft 311 is connected to the rotating arm 32. The rack 313 is meshed with the gear 314. The driving part 312 is installed on the lower surface of the bracket 1. The driving part 312 is connected to the rack 313 to drive the gear 314 to drive the rotating shaft 311 to rotate.

[0045] The anti-drop component 3 can be installed on the lower surface of the bracket 1 through a mounting plate. The rotating shaft 311 of the driving member 31 is rotatably mounted on the mounting plate through a mounting block. The driving part 312 is fixedly mounted on the mounting plate. The rack 313 is connected to the driving shaft of the driving part 312. The gear 314 is sleeved on the rotating shaft 311 and meshes with the rack 313. In this way, the anti-drop component 3 can be installed on the bracket 1 as a module to facilitate the disassembly and assembly of the anti-drop component 3.

[0046] The driving part 312 indirectly drives the rotating arm 32 to rotate through the rack 313 and the gear 314, which can prevent the driving part 312 from directly driving the rotating arm 32 to rotate with too much force, causing the supporting part 33 on the rotating arm 32 to overshoot with the workpiece. The driving part 312 can be a linear motor or a cylinder. Since the volume of a linear motor is larger than that of a cylinder when achieving the same function, it is easier to cause spatial interference with other components, so the driving part 312 is preferably a cylinder, and the cost of using a cylinder as the driving part 312 is lower than the cost of using a linear motor as the driving part 312.

[0047] The gear 314 is provided with an anti-loosening member 315 , and the anti-loosening member 315 is used to prevent the gear 314 from rotating on the rotating shaft 311 .

[0048] Since the gear 314 and the rack 313 mesh, the teeth on the gear 314 are easily worn, so the gear 314 and the rotating shaft 311, which are wearing parts, should be detachably connected to facilitate the replacement of the gear 314. If the connection between the gear 314 and the rotating shaft 311 is loose, the rotating arm 32 cannot be rotated, so the gear 314 needs to be strengthened with the rotating shaft 311 through the anti-loosening member 315.

[0049] The gear 314 and the rotating shaft 311 may be connected by threads, and the anti-loosening member 315 may be two fixing nuts threadedly connected to the rotating shaft 311 and respectively disposed on both sides of the gear 314 to prevent the gear 314 from loosening.

[0050] Preferably, the anti-loosening member 315 includes a fixing portion 3151 and a tightening portion 3152, the fixing portion 3151 is connected to the gear 314, the fixing portion 3151 is provided with a through hole for passing the rotating shaft 311, the through hole is connected to the first socket on the gear 314, and the side wall of the fixing portion 3151 is provided with a threaded hole for threaded connection with the tightening portion 3152, the tightening portion 3152 is inserted in the threaded hole and abuts against the side wall of the rotating shaft 311 to prevent the gear 314 from rotating on the rotating shaft 311.

[0051] The rotating shaft 311 passes through the through hole on the fixing portion 3151 and is inserted into the first plug hole on the gear 314. The tightening portion 3152 adopts a tightening screw. The tightening screw is screwed into the threaded hole and the end of the tightening screw is abutted against the side wall of the rotating shaft 311. This can prevent the fixing portion 3151 from rotating on the rotating shaft 311, so that the gear 314 fixedly connected to the fixing portion 3151 cannot rotate on the rotating shaft 311.

[0052] The driving member 31 also includes a guide portion 316, and the guide portion 316 includes a guide sub-portion and a sliding sub-portion. The guide sub-portion is slidably connected to the sliding sub-portion, and the guide sub-portion is installed on the bracket. The sliding sub-portion of the guide portion is connected to the rack 313 to prevent the rack 313 from shifting during movement.

[0053] If the rack 313 is deviated in direction during movement, the rack 313 may be separated from the gear 314, causing the gear 314 to be unable to drive the shaft 311 to rotate, thereby making the rotating arm 32 unable to rotate. Therefore, the guide part 316 is required to ensure that the rack 313 is not deviated in direction during movement, thereby ensuring the operating stability of the anti-drop assembly 3.

[0054] The guide sub-part is a guide rail, and the sliding sub-part is a slider. The guide rail and the slider are slidably connected. The rack 313 is installed on the slider. The length direction of the guide rail and the length direction of the rack 313 are parallel to the driving direction of the driving part 312. The guide part 316 can also be a guide groove formed by the two side plates being arranged opposite to each other. The length direction of the guide groove and the length direction of the rack 313 are parallel to the driving direction of the driving part 312. The driving part 312 can drive the rack 313 to move along the length direction of the guide groove.

[0055] The support member 33 is provided with a buffer portion 331 on a surface thereof that is in contact with the workpiece.

[0056] The buffer portion 331 may be a cushion block made of elastic materials such as elastic silica gel or sponge to prevent the workpiece from over-collision with the supporting member 33 when the workpiece falls and thus causing damage to the workpiece. The buffer portion 331 reduces the loss rate of the workpiece.

[0057] See also Figure 4 An embodiment of the present application also provides a welding device, including the clamp described above, and also includes a welding device, wherein the welding device is used to weld the workpiece clamped by the clamp.

[0058] Since the welding equipment of the embodiment of the present application includes the clamp in any of the above embodiments, it has the beneficial effects brought by the clamp in any of the above embodiments, which will not be described in detail here.

[0059] The welding equipment further comprises a moving device 4 and a carrier 5 , wherein the carrier 5 is used for loading the workpiece, the moving device 4 is used for moving the carrier 5 , and the clamp is used for clamping the workpiece in the carrier 5 .

[0060] The fixture of the welding equipment is provided with an upper positioning plate, and a second welding hole is provided on the upper positioning plate, through which the welding device can weld the workpiece clamped by the fixture. The upper positioning plate is used to abut against the workpiece in the carrier 5 to keep the horizontal height of the upper surface of the workpiece consistent, so that the welding device can weld the upper surface of the workpiece.

[0061] The moving device 4 also includes a transport component and a lifting component. The lifting component is arranged in the middle of the transport track of the transport component. The carrier 5 is transported to the bottom of the fixture by the transport component, and the lifting component lifts the carrier 5 so that the workpiece in the carrier 5 abuts against the upper positioning plate.

[0062] The welding equipment provided in the embodiment of the present application has the following working principle / process:

[0063] The transport component transports the carrier 5 to the bottom of the fixture, and the jacking component lifts the carrier 5 until the workpiece of the carrier 5 abuts against the upper positioning plate. The first clamping member 21 and the second clamping member 22 of the fixture clamp the workpiece. At the same time, the driving member 31 of the anti-drop component 3 rotates the rotating arm 32 so that the supporting member 33 is located under the workpiece to prevent the workpiece from falling. The jacking component moves the carrier 5 downward, and the welding device welds the workpiece through the second welding hole of the upper positioning plate.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A clamp, characterized in that: include: A bracket, wherein a first welding hole is provided on the bracket; A clamping assembly, the clamping assembly comprising a first clamping member and a second clamping member for clamping a workpiece, the first clamping member and the second clamping member being relatively mounted on the upper surface of the bracket, and the first clamping member and the second clamping member being located on the side of the first welding hole; and at least one An anti-drop assembly, the anti-drop assembly includes a driving member, a rotating arm and a supporting member, the driving member is installed on the lower surface of the bracket, the rotating arm is connected to the supporting member, the supporting member is used to support the falling workpiece, the driving member is connected to the rotating arm to drive the rotating arm to rotate so that the supporting member is located below between the first clamping member and the second clamping member.

2. The clamp according to claim 1, characterized in that: An angle between a side wall of the rotating arm close to the first welding hole and a supporting surface of the supporting member for supporting a workpiece is an obtuse angle.

3. The clamp according to claim 2, characterized in that: The angle between the side wall of the rotating arm close to the first welding hole and the supporting surface of the supporting member for supporting the workpiece is 135°.

4. The clamp according to any one of claims 1 to 3, characterized in that: The driving member includes a rotating shaft, a driving part, a rack and a gear. The gear is provided with a first socket, the rotating shaft is inserted into the first socket of the gear, the rotating shaft is connected to the rotating arm, the rack is meshed with the gear, the driving part is installed on the lower surface of the bracket, and the driving part is connected to the rack to drive the gear to drive the rotating shaft to rotate.

5. The clamp according to claim 4, characterized in that: The gear is provided with an anti-loosening member, and the anti-loosening member is used to prevent the gear from rotating on the rotating shaft.

6. The clamp according to claim 5, characterized in that: The anti-loosening component includes a fixing portion and a tightening portion, the fixing portion is connected to the gear, the fixing portion is provided with a through hole for passing the rotating shaft, the through hole is communicated with the first plug hole on the gear, the side wall of the fixing portion is provided with a threaded hole for threaded connection with the tightening portion, the tightening portion is inserted into the threaded hole and abuts against the side wall of the rotating shaft to prevent the gear from rotating on the rotating shaft.

7. The clamp according to claim 4, characterized in that: The driving member also includes a guide portion, which includes a guide sub-portion and a sliding sub-portion, the guide sub-portion is slidably connected to the sliding sub-portion, the guide sub-portion is installed on the bracket, and the sliding sub-portion of the guide portion is connected to the rack to prevent the rack from shifting during movement.

8. The clamp according to claim 1, characterized in that: A buffer portion is arranged on a surface of the supporting member that is used for contacting the workpiece.

9. A welding device, characterized in that: The clamp comprises the clamp according to any one of claims 1 to 8, and further comprises a welding device, wherein the welding device is used to weld the workpiece clamped by the clamp.

10. The welding device according to claim 9, characterized in that It also includes a moving device and a carrier, the carrier is used to load the workpiece, the moving device is used to move the carrier, and the clamp is used to clamp the workpiece in the carrier.

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