Pole piece material pressing clamp

Abstract

The utility model discloses a pole piece material pressing clamp which comprises a first hinge block and a second hinge block, the middle of the first hinge block and the middle of the second hinge block are hinged together through a fixing pin, and one end of the first hinge block and one end of the second hinge block are both fixedly connected with clamping blocks. The first hinge block and the second hinge block are arranged at two ends of the clamping block respectively, the two groups of clamping blocks correspond to each other and are respectively provided with a sampling assembly for sampling a battery pole piece from one side, the other ends of the first hinge block and the second hinge block are respectively provided with a connecting piece, and the first hinge block and the second hinge block are respectively connected with a grab handle through the connecting pieces. The gear shifting inserting rod moves upwards to be separated from the inner cavity of the inserting groove, limitation on the connecting column is relieved, and therefore the grab handle can be rotated, adjustment is conducted according to the size of the hand of a user, the grab handle is adjusted to the comfortable holding position, and then the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece pressing pliers, in particular to a pole piece pressing pliers. Background Art

[0002] The surface density data of the electrode is an important parameter in the production process of lithium battery cells. In terms of engineering materials, the surface density value is the mass per unit area of a material of a specified thickness. Whether it can be accurately measured affects the consistency of the coating surface density, the compaction density of the electrode roller, the thickness and weight of the battery cell, the capacity of the battery cell, etc.

[0003] A Chinese patent with announcement number CN219495701U discloses a portable lithium battery cell pole piece sampler, comprising an upper clamp handle and a lower clamp handle, wherein the upper clamp handle and the lower clamp handle are hinged in the middle by a pin shaft, and a sampling device is fixedly provided at the upper end of the front end of the lower clamp handle. The sampling device is circular and has a cavity in the middle. An annular cutter for cutting is provided at the lower end around the cavity, and a holding device is fixedly provided at the lower end of the front end of the upper clamp handle. A placement groove is provided in the middle of the holding device, and the placement groove is used to place the pole piece sample to be cut. The utility model has a small overall mass, a small size, and does not need to be fixed for use, and can be portable for sampling; and there are no special requirements for the placement method and placement position of the pole piece, and sampling can be done at any position. Sampling can also be done on the tape splicing platform when the coating is stopped, without the need for cutting the piece for sampling.

[0004] The above-mentioned portable lithium battery cell electrode sampler still has some problems in use. Since the distance between the upper clamp handle and the lower clamp handle cannot be adjusted according to the size of the user's hand, it affects the user's grip feel and may affect the user's hand from exerting force well. Utility Model Content

[0005] The purpose of the present utility model is to provide a pole piece pressing pliers to solve the problem proposed in the above background technology that the distance between the upper pliers handle and the lower pliers handle cannot be adjusted according to the size of the user's hand, thereby affecting the user's hand feel when holding it and possibly affecting the user's hand from being able to exert force well.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A pole piece press comprises a first hinge block and a second hinge block, wherein the middle portions of the first hinge block and the second hinge block are hinged together by a fixing pin, one end of each of the first hinge block and the second hinge block is fixedly connected to a clamping block, and a sampling assembly for sampling a battery pole piece is provided on one side of each of the two sets of clamping blocks, and the other ends of each of the first hinge block and the second hinge block are provided with a connecting piece, and the first hinge block and the second hinge block are connected to a handle via the connecting piece;

[0008] The connecting piece includes a rotating hole respectively opened at one end of the first hinge block and the second hinge block, the inner cavity of the two groups of rotating holes are rotatably connected with a connecting column, and the top of one end of the first hinge block and the second hinge block are respectively inserted with a threaded rod, and the threaded rods respectively pass through the corresponding side rotating hole and the connecting column and are threadedly connected to the bottom inner wall of the rotating hole, and the top of the two groups of threaded rods are provided with a connecting strip, and the bottom of both sides of the connecting strip is fixedly connected with an insertion rod, and the top surface of the two groups of connecting columns is provided with a slot corresponding to the insertion rod and arranged in a circular array, the insertion rods on the same side respectively pass through the rotating holes at the corresponding positions and are inserted into the inner cavity of the slot, and the inside of the threaded rod is provided with an anti-falling component for preventing the insertion rod from falling off.

[0009] Preferably, the sampling assembly includes an annular blade inserted into the surface of one group of clamping blocks, a circular nut is fixedly connected to the surface of the clamping block on the same side as the annular blade, one end surface of the annular blade is provided with an external thread, the annular blade is threadedly connected to the inner cavity of the circular nut through the external thread, one end of the annular blade is provided with a rotating part for rotating the annular blade, and a circular groove is provided on the surface of the other group of clamping blocks and at a position corresponding to the annular blade.

[0010] Preferably, the anti-slip assembly includes circular grooves respectively opened inside the two groups of threaded rods, the bottom inner cavity of the circular groove is slidably connected to a limit plate, the top of the limit plate is fixedly connected to a pull rod, one end of the two groups of pull rods both penetrate the threaded rods upward and are fixedly connected to the bottom of the connecting strip on the corresponding side, and the surfaces of the two groups of pull rods located in the inner cavity of the circular groove are provided with springs, and the two ends of the spring are respectively fixedly connected to the inner wall of the circular groove at the corresponding position and the top of the limit plate.

[0011] Preferably, the rotating member includes a connecting disk fixedly mounted on the mouth of the annular blade, and a hand wheel is fixedly connected to the surface of the connecting disk.

[0012] Preferably, handles are fixedly connected to the tops of the two groups of connecting strips.

[0013] Preferably, the diameter of the circular groove is larger than the diameter of the annular blade.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides a connecting piece, and by pulling the connecting bar upward, the gear shift rod moves upward, disengaging from the inner cavity of the slot, and releasing the restriction on the connecting column, so that the handle can be rotated and adjusted according to the size of the user's hand to a position that is more comfortable to hold, thereby improving work efficiency.

[0016] 2. The utility model is provided with an anti-drop assembly. When the insertion rod is inserted into the slot, the elastic force of the spring can move the limit plate downward, driving the pull rod and the connecting bar to move downward, thereby preventing the insertion rod from falling off from the slot, ensuring the connection stability of the connecting piece, and realizing automatic resetting of the insertion rod when the handle is released.

[0017] 3. The utility model uses the setting of the hand wheel to facilitate the operator to rotate the annular blade, making the sampling operation easier and more labor-saving. Moreover, when the annular blade is used for a long time and the blade edge is aged, the annular blade can be easily removed and replaced, which is very convenient and quick, and improves the maintenance convenience of the press pliers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the electrode pressing pliers of the present utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the threaded rod of the present invention.

[0021] In the figure: 100, fixing pin; 101, first hinge block; 102, connecting column; 103, handle; 104, second hinge block; 105, clamping block; 106, circular nut; 107, annular blade; 108, connecting disk; 109, handwheel; 110, external thread; 111, circular groove; 200, connecting strip; 201, threaded rod; 202, rotating hole; 203, insertion rod; 204, slot; 205, circular groove; 206, spring; 207, pull rod; 208, limit disk; 209, handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3This embodiment provides a pole piece pressing pliers, including a first hinge block 101 and a second hinge block 104. The middle parts of the first hinge block 101 and the second hinge block 104 are hinged together by a fixing pin 100. One end of the first hinge block 101 and the second hinge block 104 are fixedly connected to a clamping block 105. The two sets of clamping blocks 105 are respectively provided with a sampling assembly for sampling the battery pole piece from one side. The other ends of the first hinge block 101 and the second hinge block 104 are provided with a connecting piece. The first hinge block 101 and the second hinge block 104 are both connected to a handle 103 through the connecting piece.

[0024] Among them, the connecting parts include rotating holes 202 respectively opened at one end of the first hinge block 101 and the second hinge block 104, the inner cavities of the two sets of rotating holes 202 are rotatably connected with the connecting column 102, and the top of one end of the first hinge block 101 and the second hinge block 104 are respectively plugged with threaded rods 201, and the threaded rods 201 respectively penetrate the corresponding side rotating holes 202 and the connecting column 102 and are threadedly connected to the bottom inner wall of the rotating hole 202. The tops of the two sets of threaded rods 201 are provided with connecting strips 200, and the bottoms of both sides of the connecting strips 200 are fixedly connected with the insertion rods 203. The top surfaces of the two sets of connecting columns 102 are provided with a threaded rod 203. 03 and the slots 204 are arranged in a circular array, and the insertion rods 203 on the same side respectively pass through the rotating holes 202 at the corresponding positions and are inserted into the inner cavity of the slots 204. The interior of the threaded rod 201 is provided with an anti-falling component for preventing the insertion rod 203 from falling off. Through the setting of the connecting piece, the connecting strip 200 is pulled upward, and the shifting insertion rod 203 moves upward and disengages from the inner cavity of the slot 204, thereby releasing the restriction on the connecting column 102, so that the handle 103 can be rotated and adjusted according to the size of the user's hand to a position that is more comfortable to hold, thereby improving work efficiency.

[0025] Preferably, the sampling assembly includes an annular blade 107 inserted into the surface of one group of clamping blocks 105, and the surface of the clamping block 105 on the same side as the annular blade 107 is fixedly connected to a circular nut 106, and one end surface of the annular blade 107 is provided with an external thread 110, and the annular blade 107 is threadedly connected to the inner cavity of the circular nut 106 through the external thread 110, and one end of the annular blade 107 is provided with a rotating part for rotating the annular blade 107, and a circular groove 111 is provided on the surface of the other group of clamping blocks 105 and at a position corresponding to the annular blade 107. Through the setting of the sampling assembly and the threaded connection between the annular blade 107 and the circular nut 106, the annular blade 107 can be stably fixed on the clamping block 105 and can be rotated by the rotating part, thereby realizing accurate sampling of the battery electrode. The setting of the circular groove 111 provides an accommodating space for sampling, ensuring the smooth progress of the sampling process.

[0026] Furthermore, the anti-slip assembly includes circular grooves 205 respectively opened in the two groups of threaded rods 201, and the bottom inner cavity of the circular grooves 205 is slidably connected to the limit plate 208, and the top of the limit plate 208 is fixedly connected to the pull rod 207, one end of the two groups of pull rods 207 both penetrate the threaded rod 201 upward and are fixedly connected to the bottom of the connecting bar 200 on the corresponding side, and the surfaces of the two groups of pull rods 207 located in the inner cavity of the circular grooves 205 are provided with springs 206, and the two ends of the springs 206 are respectively fixedly connected to the inner wall of the circular grooves 205 and the top of the limit plate 208 at the corresponding positions. Through the setting of the anti-slip assembly, when the insertion rod 203 is inserted into the slot 204, the elastic force of the spring 206 can make the limit plate 208 move downward, driving the pull rod 207 and the connecting bar 200 to move downward, thereby preventing the insertion rod 203 from falling off from the slot 204, ensuring the connection stability of the connecting piece, and realizing the automatic resetting of the insertion rod 203 when the handle 209 is released.

[0027] Furthermore, the rotating part includes a connecting plate 108 fixedly mounted on the mouth of the annular blade 107, and a hand wheel 109 is fixedly connected to the surface of the connecting plate 108. The setting of the hand wheel 109 facilitates the operator to rotate the annular blade 107, making the sampling operation easier and more labor-saving. Moreover, when the annular blade 107 is used for a long time and the blade edge ages, the annular blade 107 can be easily removed and replaced, which is very convenient and quick, thereby improving the maintenance convenience of the press pliers.

[0028] It is worth noting that the tops of the two sets of connecting bars 200 are fixedly connected with handles 209, which makes it convenient for staff to pull the connecting bars 200, thereby improving the convenience of use for users.

[0029] Preferably, the diameter of the circular groove 111 is larger than the diameter of the annular blade 107, ensuring that the annular blade 107 can smoothly enter the circular groove 111, avoiding collision or jamming during the sampling process, and ensuring the accuracy and smoothness of sampling.

[0030] Working principle;

[0031] When the distance between the two sets of handles 103 needs to be adjusted, first pull up one of the sets of handles 209 to move the connecting bar 200 upwards, and at the same time, drive the pull rod 207 upwards to disengage from the inner cavity of the slot 204, and release the restriction on the connecting column 102. Then rotate the set of handles 103 to adjust the handles 103 to a more comfortable angle for holding. At this time, release the handles 209, and the spring 206 in the circular groove 205 pushes the limit plate 208 downwards. At the same time, the limit plate 208 pulls the pull rod 207 downwards, driving the connecting bar 200 to move downwards, so that the insertion rods 203 at both ends of the connecting bar 200 pass through the rotating hole 202 and are inserted into the slot 204 on the surface of the connecting column 102, adjusting the connecting column 102. Fix it, and then adjust the other set of handles 103 according to the above operating steps. When it is necessary to sample the battery pole piece, the two sets of clamping blocks 105 clamp the battery pole piece at the same time, and the annular blade 107 installed on one set of clamping blocks 105 crimps the battery pole piece, thereby cutting off the crimped part to sample the battery pole piece. When sampling battery pole pieces with higher density, you can first turn the hand wheel 109 to unscrew the annular blade 107 so that the mouth of the annular blade 107 and the clamping end are in a flat state. Then, the two sets of clamping blocks 105 clamp the battery pole piece at the same time, and then turn the hand wheel 109 to screw the annular blade 107 into the clamping block 105, and rotate and cut the battery pole piece downward to sample the battery pole piece, which is more labor-saving and reduces the wear of the annular blade 107.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pole piece pressing pliers, characterized in that: The invention comprises a first hinge block (101) and a second hinge block (104), wherein the middle parts of the first hinge block (101) and the second hinge block (104) are hinged together by a fixing pin (100), one end of each of the first hinge block (101) and the second hinge block (104) is fixedly connected to a clamping block (105), and two groups of the clamping blocks (105) are provided with a sampling assembly for sampling the battery electrode from one side, and the other ends of each of the first hinge block (101) and the second hinge block (104) are provided with a connecting piece, and the first hinge block (101) and the second hinge block (104) are connected to a handle (103) via the connecting piece; The connecting member comprises a rotating hole (202) respectively opened at one end of the first hinge block (101) and the second hinge block (104), the inner cavities of the two groups of rotating holes (202) are both rotatably connected to the connecting column (102), the top of one end of the first hinge block (101) and the second hinge block (104) are respectively plugged with a threaded rod (201), the threaded rod (201) respectively passes through the corresponding side rotating hole (202) and the connecting column (102) and is threadedly connected to the bottom inner wall of the rotating hole (202), the two groups of threaded rods (201) are respectively inserted into the top of the first hinge block (101) and the second hinge block (104), and the threaded rod (201) respectively passes through the corresponding side rotating hole (202) and the connecting column (102) and is threadedly connected to the bottom inner wall of the rotating hole (202). 1) is provided with a connecting strip (200) at the top, and the bottoms of both sides of the connecting strip (200) are fixedly connected with plug rods (203), and the top surfaces of the two groups of connecting columns (102) are provided with slots (204) corresponding to the plug rods (203) and arranged in a ring array, and the plug rods (203) on the same side respectively pass through the rotating holes (202) at corresponding positions and are inserted into the inner cavity of the slots (204), and the interior of the threaded rod (201) is provided with an anti-falling component for preventing the plug rod (203) from falling off.

2. The electrode pressing pliers according to claim 1, characterized in that: The sampling assembly includes an annular blade (107) inserted into the surface of one group of clamping blocks (105); a circular nut (106) is fixedly connected to the surface of the clamping block (105) on the same side as the annular blade (107); an external thread (110) is provided on one end surface of the annular blade (107); the annular blade (107) is threadedly connected to the inner cavity of the circular nut (106) through the external thread (110); a rotating part for rotating the annular blade (107) is provided at one end of the annular blade (107); and a circular groove (111) is provided on the surface of the other group of clamping blocks (105) and at a position corresponding to the annular blade (107).

3. The electrode pressing pliers according to claim 1, characterized in that: The anti-slip assembly includes circular grooves (205) respectively opened inside two groups of threaded rods (201), the bottom inner cavity of the circular groove (205) is slidably connected to a limit plate (208), the top of the limit plate (208) is fixedly connected to a pull rod (207), one end of the two groups of pull rods (207) are both upwardly penetrated through the threaded rod (201) and fixedly connected to the bottom of the connecting strip (200) on the corresponding side, and the surfaces of the two groups of pull rods (207) located in the inner cavity of the circular groove (205) are provided with springs (206), and the two ends of the spring (206) are respectively fixedly connected to the inner wall of the circular groove (205) at the corresponding position and the top of the limit plate (208).

4. The electrode pressing pliers according to claim 2, characterized in that: The rotating member comprises a connecting disc (108) fixedly mounted on the mouth of the annular blade (107), and a hand wheel (109) is fixedly connected to the surface of the connecting disc (108).

5. The electrode pressing pliers according to claim 1, characterized in that: The tops of the two groups of connecting bars (200) are both fixedly connected with handles (209).

6. The electrode pressing pliers according to claim 2, characterized in that: The diameter of the circular groove (111) is greater than the diameter of the annular blade (107).

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