Positioning clamp and thickness measuring device

Abstract

The embodiment of the utility model provides a positioning clamp and a thickness measuring device, and relates to the technical field of measurement. The positioning clamp comprises a first clamping part, a second clamping part and a first elastic piece. The first clamping part and the second clamping part are oppositely arranged in the first direction. On the basis, the two ends of the first elastic piece are connected with the first clamping part and the second clamping part respectively. And the second clamping part is used for being connected with the second elastic piece and is used for being connected with the driving piece. On the basis of the arrangement, on one hand, the positioning clamp can apply acting force to the pole piece in the vertical direction through the first clamping part and the second clamping part; and on the other hand, the positioning clamp can act together with the configured driving piece and the second elastic piece, so that the extension of the pole piece in the horizontal direction is optimized. Therefore, the positioning clamp provided by the utility model reduces the wrinkles of the foil and improves the accuracy of data measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a positioning fixture and a thickness measuring device. Background Art

[0002] Currently, when using a measuring device to measure a pole piece, a common fixing method is to place a clamping plate at the front and rear ends of the pole piece, and place a clamping rod in the groove between the two clamping plates to keep the pole piece surface flat.

[0003] When the above method is used to fix the electrode for measurement, the pressure used to flatten the electrode is basically applied along the length direction of the electrode (i.e., the front-to-back direction). However, in the thickness direction of the electrode, which is perpendicular to the pressure direction, there is insufficient support to ensure that the electrode is completely flat. Utility Model Content

[0004] The purpose of the present invention includes providing a positioning fixture and a thickness measuring device, which can apply force to the pole piece in the horizontal and vertical directions, reduce the wrinkles of the pole piece, and improve the accuracy of data measurement.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] In a first aspect, the utility model provides a positioning fixture, comprising a first clamping portion, a second clamping portion, and a first elastic member, wherein the first clamping portion and the second clamping portion are arranged opposite to each other along a first direction;

[0007] Two ends of the first elastic member are respectively connected to the first clamping portion and the second clamping portion, and are used to enable the first clamping portion and the second clamping portion to clamp the pole piece together in the first direction;

[0008] The second clamping portion is used to connect with the second elastic member and to connect with the driving member, and under the action of the driving member, stretches or compresses the second elastic member along the second direction;

[0009] The first direction and the second direction are perpendicular to each other.

[0010] In an optional embodiment, the first clamping portion is provided with a first positioning groove, the second clamping portion is provided with a second positioning groove, one end of the first elastic member is connected to the bottom wall of the first positioning groove, and the other end is connected to the bottom wall of the second positioning groove.

[0011] In an optional embodiment, a protrusion is provided at one end of the first clamping portion away from the first elastic member, and the protrusion is used to clamp the pole piece together with the second clamping portion in the first direction.

[0012] In an optional embodiment, the second clamping portion is provided with a rack extending along the second direction, and the rack is used to cooperate with the gear of the driving member.

[0013] In an optional embodiment, the positioning fixture further includes a connecting portion, and the second clamping portion is connected to the second elastic member via the connecting portion.

[0014] In a second aspect, the present invention provides a thickness measuring device, comprising a carrying platform, a driving member, and a positioning fixture according to any one of the aforementioned embodiments; the carrying platform is used to carry a pole piece and is provided with a first mounting groove and a second mounting groove;

[0015] The second clamping portion cooperates with the first mounting groove, and the driving member cooperates with the second mounting groove and is drivingly connected to the second clamping portion for driving the second clamping portion to slide relative to the first mounting groove.

[0016] In an optional embodiment, a third mounting groove is formed in the bottom wall of the first mounting groove, and the thickness measuring device further includes a second elastic member, with both ends of the second elastic member respectively connected to the groove wall of the third mounting groove and the second clamping portion.

[0017] In an optional embodiment, the thickness measuring device further includes a strain gauge, and the second elastic member is connected to the slot wall of the third installation slot via the strain gauge.

[0018] In an optional embodiment, the thickness measuring device further includes a laser thickness gauge, which is connected to the supporting platform and is used to measure the thickness of the pole piece.

[0019] In an optional embodiment, the number of the positioning fixtures is an even number, and the even number of positioning fixtures are arranged on the supporting platform in pairs; the driving members correspond to the positioning fixtures one by one.

[0020] The advantages of the positioning fixture and thickness measuring device provided by the embodiments of the present invention include:

[0021] The present application provides a positioning fixture and a thickness measuring device, wherein the positioning fixture includes a first clamping portion, a second clamping portion and a first elastic member. The first clamping portion and the second clamping portion are arranged relative to each other along a first direction. On the basis of the above, the two ends of the first elastic member are respectively connected to the first clamping portion and the second clamping portion. The second clamping portion is used to connect with the second elastic member and to connect with the driving member. Based on the above arrangement, on the one hand, the positioning fixture can apply a force to the pole piece in the vertical direction through the first clamping portion and the second clamping portion; on the other hand, the positioning fixture can work together with the configured driving member and the second elastic member to optimize the extension of the pole piece in the horizontal direction. Therefore, the positioning fixture provided by the present application reduces the wrinkles of the foil and improves the accuracy of data measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of a positioning fixture provided in an embodiment of the present utility model;

[0024] Figure 2 A schematic diagram of a thickness measuring device provided in an embodiment of the present utility model;

[0025] Figure 3 A partial schematic diagram of a thickness measuring device provided in an embodiment of the present utility model;

[0026] Figure 4 The embodiment of the present invention provides Figure 3 Enlarged schematic diagram of point A in the middle.

[0027] Icons: 10-thickness measuring device; 30-pole piece; 100-positioning fixture; 110-first clamping part; 111-first positioning groove; 113-bump; 130-second clamping part; 131-second positioning groove; 133-rack; 150-first elastic member; 170-connecting part; 300-driving member; 510-second elastic member; 530-strain gauge; 700-support platform; 710-first mounting groove; 730-second mounting groove; 750-third mounting groove; 900-laser thickness gauge. DETAILED DESCRIPTION

[0028] The electrode thickness measurement device in the related art only applies force to the electrode along its length, but not along its thickness. As a result, wrinkles appear in the electrode foil parallel to the force direction, affecting the measurement data.

[0029] In response to the above problems, the present invention provides a positioning fixture and a thickness measuring device. The positioning fixture can apply force to the electrode in both the horizontal and vertical directions, thereby reducing wrinkles on the electrode and improving the accuracy of data measurement.

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0036] The overall structure, working principle and technical effects of the positioning fixture 100 and the thickness measuring device 10 provided by the present invention are described in detail below through embodiments and in conjunction with the accompanying drawings.

[0037] See also Figure 1 The present invention provides a positioning fixture 100 for clamping the portion of the electrode 30 excluding the foil area, hereinafter referred to as clamping the electrode 30. The positioning fixture 100 includes a first clamping portion 110, a second clamping portion 130, and a first elastic member 150. The first clamping portion 110 and the second clamping portion 130 are arranged opposite to each other along a first direction.

[0038] It should be noted that the relative arrangement of the first clamping portion 110 and the second clamping portion 130 can be a partially staggered arrangement or a facing arrangement, as long as the projections of the two at least partially overlap in the plane perpendicular to the first direction. This is not limited by the present invention.

[0039] On the basis of the above, the two ends of the first elastic member 150 are respectively connected to the first clamping portion 110 and the second clamping portion 130, so that the first clamping portion 110 and the second clamping portion 130 can jointly clamp the pole piece 30 in the first direction. It can be understood that connecting the first clamping portion 110 and the second clamping portion 130 through the first elastic member 150 can allow for quick placement and clamping of the pole piece 30, thereby improving work efficiency.

[0040] Specifically, the first clamping portion 110 and the second clamping portion 130 are in a closed state by default. Before positioning and clamping the electrode 30, the first clamping portion 110 needs to be raised, the electrode 30 needs to be placed on the second clamping portion 130, and then the first clamping portion 110 needs to be released. At this point, the first elastic member 150 generates a restoring force due to the return to the default state, thereby automatically clamping the electrode 30 in the first direction.

[0041] The second clamping portion 130 is used to connect with the second elastic member 510 and the driving member 300, and under the action of the driving member 300, stretches or compresses the second elastic member 510 along the second direction. The first direction and the second direction are perpendicular to each other. It should be noted that Figure 1 In the illustrated embodiment, the first direction is a vertical direction, and the second direction is a horizontal direction.

[0042] It should also be noted that the second direction is also the axial direction of the second elastic member 510. Under the action of the driving member 300, the first clamping portion 110 and the second clamping portion 130 reciprocate along the axial direction of the second elastic member 510. During this process, the second elastic member 510 can smooth out sudden changes in the driving process, making the movement smoother and more continuous, thereby optimizing the horizontal extension of the pole piece 30.

[0043] Based on the above arrangement, on the one hand, the first clamping portion 110 and the second clamping portion 130 can exert a force on the pole piece 30 in the vertical direction; on the other hand, they can work together with the configured driving member 300 and the second elastic member 510 to optimize the horizontal extension of the pole piece 30. Therefore, the positioning fixture 100 provided by the present application reduces wrinkles in the foil and improves the accuracy of data measurement.

[0044] In some embodiments, in order to prevent the first elastic member 150 from affecting the default closed state of the first clamping portion 110 and the second clamping portion 130, the first clamping portion 110 is provided with a first positioning groove 111, and the second clamping portion 130 is provided with a second positioning groove 131. One end of the first elastic member 150 is connected to the bottom wall of the first positioning groove 111, and the other end is connected to the bottom wall of the second positioning groove 131.

[0045] It can be understood that when the first clamping portion 110 and the second clamping portion 130 are in the default closed state, the first positioning groove 111 and the second positioning groove 131 together form a accommodating chamber, and the first elastic member 150 in its original state is located in the accommodating chamber, and its size will not affect the natural closure of the first clamping portion 110 and the second clamping portion 130.

[0046] In other embodiments, a protrusion 113 is provided at one end of the first clamping portion 110 away from the first elastic member 150. Furthermore, the protrusion 113 is used to clamp the pole piece 30 together with the second clamping portion 130 in the first direction. In other words, the first clamping portion 110 is naturally closed with the second clamping portion 130 via the protrusion 113.

[0047] Please refer again Figure 1 To facilitate connection with the second elastic member 510, the positioning fixture 100 further includes a connecting portion 170, through which the second clamping portion 130 is connected to the second elastic member 510. It is understood that, compared to the larger second clamping portion 130, the second elastic member 510 is connected to the smaller connecting portion 170, which can better avoid lateral movement and prevent deflection and distortion during operation.

[0048] Considering the accuracy and stability of the linear motion of the positioning fixture 100 along the second direction, the second clamping portion 130 is provided with a rack 133 extending along the second direction, and the rack 133 is used to cooperate with the gear of the driving member 300. In other embodiments, the driving member 300 can also be configured as a servo motor or a stepper motor, etc., which is a mechanical component for converting the power of a power source into linear motion.

[0049] See also Figure 2 、 Figure 3 as well as Figure 4 The present application also provides a thickness measuring device 10, which utilizes the positioning fixture 100 described in the above embodiment and similarly has the beneficial effect of reducing wrinkles in the foil of the electrode piece 30 and improving data measurement accuracy. Furthermore, the thickness measuring device 10 is also provided with a corresponding supporting platform 700 and a driving member 300, thereby providing a more efficient and accurate solution for measuring the thickness of the electrode piece 30 through reasonable spatial layout and automated control.

[0050] Specifically, the support platform 700 is used to support the pole piece 30 and is provided with a first mounting groove 710 and a second mounting groove 730. The second clamping portion 130 cooperates with the first mounting groove 710, and the driving member 300 cooperates with the second mounting groove 730. Furthermore, the driving member 300 is drivingly connected to the second clamping portion 130, and is used to drive the second clamping portion 130 to slide relative to the first mounting groove 710. Therefore, when the positioning fixture 100 clamps the pole piece 30, it can slide along the extension direction of the first mounting groove 710 under the action of the driving member 300, thereby horizontally extending the pole piece 30 and reducing wrinkles.

[0051] To optimize the overall force applied to the pole piece 30 and avoid unbalanced force on the pole piece 30, the number of positioning fixtures 100 is an even number, and pairs of even-numbered positioning fixtures 100 are arranged opposite each other on the support platform 700; the driving members 300 correspond one-to-one with the positioning fixtures 100. It will be understood that, accordingly, the first mounting slots 710 and the second mounting slots 730 also correspond one-to-one with the number and position of the positioning fixtures 100 and the driving members 300, respectively.

[0052] For example, Figure 3 and Figure 4 As shown, when the support platform 700 is a square when viewed from above, four positioning fixtures 100 can be installed. The four positioning fixtures 100 are located at the four corners of the square, and their horizontal movement direction (i.e., the second direction) is set at 45 degrees to the side lines on both sides. Accordingly, after the pole piece 30 is placed, the extension direction of the diagonal line of the pole piece 30 is the horizontal movement direction of the positioning fixture 100.

[0053] Furthermore, the bottom wall of the first mounting groove 710 is provided with a third mounting groove 750, and the thickness measuring device 10 further includes a second elastic member 510, and both ends of the second elastic member 510 are respectively connected to the groove wall of the third mounting groove 750 and the second clamping portion 130. Figure 4 As shown, the first mounting groove 710 and the third mounting groove 750 both extend axially along the second elastic member 510. Therefore, as described above, the second elastic member 510 can smooth sudden changes in the driving process, making the movement smoother and continuous, so as to optimize the horizontal extension of the pole piece 30.

[0054] Furthermore, the thickness measurement device 10 also includes a strain gauge 530, through which the second elastic member 510 is connected to the wall of the third mounting slot 750. It should be noted that the second elastic member 510 and the strain gauge 530 together constitute a tension sensor. During the movement of the positioning fixture 100, the second elastic member 510 transmits the pulling force to the strain gauge 530, thereby obtaining the magnitude of the pulling force in real time.

[0055] Based on this observation, when the strain gauge reaches a preset tensile force, the driver 300 is turned off to prevent excessive displacement of the positioning fixture 100 and damage to the pole piece 30. In some embodiments, the strain gauge 530 can also be electrically connected to the driver 300 to turn off the driver 300 when a preset tensile force is reached. Optionally, the preset tensile force is 5N.

[0056] See also Figure 2 and Figure 3 Considering that an integrated setup can simplify component setup and reduce economic costs, the thickness measuring device 10 further includes a laser thickness gauge 900, which is connected to the carrier platform 700 and is used to measure the thickness of the pole piece 30. Optionally, the laser thickness gauge 900 is connected to the carrier platform 700 via a retractable bracket and is vertically aligned with the carrier platform 700 to ensure detection accuracy.

[0057] In addition, it should be noted that the laser thickness gauge 900 uses a laser beam to measure without direct contact with the pole piece 30, which can avoid wrinkling of the pole piece 30 during the measurement process. In other embodiments, an ultrasonic thickness gauge or a capacitive sensor can also be used for measurement.

[0058] Taking the thickness measuring device 10 provided by the present invention as an example, its working principle and workflow are as follows:

[0059] The default state of the positioning fixture 100 is a closed state between the first clamping portion 110 and the second clamping portion 130. Before positioning and clamping the electrode 30, the first clamping portion 110 needs to be raised, the electrode 30 needs to be placed on the second clamping portion 130, and then the first clamping portion 110 needs to be released. At this point, under the action of the first elastic member 150, the positioning fixture 100 tends to return to the default state, clamping the electrode 30.

[0060] Then, driven by the driver 300, the positioning fixture 100 moves relative to the first mounting slot 710 in a direction away from the center of the pole piece 30. When the strain gauge 530 detects a preset tension, it will feedback to the driver 300 and stop the driver 300.

[0061] Since the thickness measuring device 10 is square in plan view, the laser thickness gauge 900 begins measuring the thickness of the electrode piece 30 after the four positioning fixtures 100 located at its four corners and at a 45-degree angle to the edges have reached a preset tension and stopped moving. After the measurement is completed, the laser thickness gauge 900 and the positioning fixtures 100 are reset, and the first clamping portion 110 is lifted to remove the electrode piece 30.

[0062] In summary, the present application provides a positioning fixture 100 and a thickness measuring device 10, wherein the positioning fixture 100 includes a first clamping portion 110, a second clamping portion 130, and a first elastic member 150. The first clamping portion 110 and the second clamping portion 130 are arranged relative to each other along a first direction. On the basis of the above, the two ends of the first elastic member 150 are respectively connected to the first clamping portion 110 and the second clamping portion 130. The second clamping portion 130 is used to connect to the second elastic member 510 and to connect to the driving member 300. Based on the above arrangement, on the one hand, the positioning fixture 100 can apply a force to the pole piece 30 in the vertical direction through the first clamping portion 110 and the second clamping portion 130; on the other hand, the positioning fixture 100 can work together with the configured driving member 300 and the second elastic member 510 to optimize the extension of the pole piece 30 in the horizontal direction. Therefore, the positioning fixture 100 provided in the present application reduces the wrinkles of the foil and improves the accuracy of data measurement.

[0063] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture, characterized in that: The invention comprises a first clamping portion (110), a second clamping portion (130) and a first elastic member (150), wherein the first clamping portion (110) and the second clamping portion (130) are arranged opposite to each other along a first direction; Two ends of the first elastic member (150) are respectively connected to the first clamping portion (110) and the second clamping portion (130), and are used to enable the first clamping portion (110) and the second clamping portion (130) to jointly clamp the pole piece (30) in the first direction; The second clamping portion (130) is used to connect with the second elastic member (510) and is also used to connect with the driving member (300), and under the action of the driving member (300), stretches or compresses the second elastic member (510) along the second direction; Furthermore, the first direction and the second direction are perpendicular to each other.

2. The positioning fixture according to claim 1, characterized in that: The first clamping portion (110) is provided with a first positioning groove (111), the second clamping portion (130) is provided with a second positioning groove (131), one end of the first elastic member (150) is connected to the bottom wall of the first positioning groove (111), and the other end is connected to the bottom wall of the second positioning groove (131).

3. The positioning fixture according to claim 1, characterized in that: A protrusion (113) is provided at one end of the first clamping portion (110) away from the first elastic member (150), and the protrusion (113) is used to clamp the pole piece (30) together with the second clamping portion (130) in the first direction.

4. The positioning fixture according to any one of claims 1 to 3, characterized in that: The second clamping portion (130) is provided with a rack (133) extending along the second direction, and the rack (133) is used to cooperate with the gear of the driving member (300).

5. The positioning fixture according to any one of claims 1 to 3, characterized in that: The positioning fixture (100) further includes a connecting portion (170), and the second clamping portion (130) is connected to the second elastic member (510) via the connecting portion (170).

6. A thickness measuring device, characterized in that: It comprises a carrying platform (700), a driving member (300) and a positioning fixture (100) according to any one of claims 1 to 5; the carrying platform (700) is used to carry the pole piece (30) and is provided with a first mounting groove (710) and a second mounting groove (730); The second clamping portion (130) cooperates with the first mounting groove (710), and the driving member (300) cooperates with the second mounting groove (730) and is drivingly connected to the second clamping portion (130) for driving the second clamping portion (130) to slide relative to the first mounting groove (710).

7. The thickness measuring device according to claim 6, characterized in that: A third mounting groove (750) is provided on the bottom wall of the first mounting groove (710). The thickness measuring device (10) further comprises a second elastic member (510), and two ends of the second elastic member (510) are respectively connected to the groove wall of the third mounting groove (750) and the second clamping portion (130).

8. The thickness measuring device according to claim 7, characterized in that: The thickness measuring device (10) further includes a strain gauge (530), and the second elastic member (510) is connected to the groove wall of the third installation groove (750) via the strain gauge (530).

9. The thickness measuring device according to claim 6, characterized in that: The thickness measuring device (10) further comprises a laser thickness gauge (900), wherein the laser thickness gauge (900) is connected to the carrier platform (700) and is used to measure the thickness of the pole piece (30).

10. The thickness measuring device according to any one of claims 6 to 9, characterized in that: The number of the positioning fixtures (100) is an even number, and the even number of positioning fixtures (100) are arranged opposite to each other on the supporting platform (700); the driving member (300) corresponds to the positioning fixture (100) one by one.

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