Mutual inductor loading jig
By designing a current transformer loading fixture that includes a base plate, clamping components, and a drive component, the problems of complex fixture structure and large driving force required in the clamping process in the prior art are solved, realizing low-force operation and high-stability clamping, and improving the automation level of current transformer production.
Patent Information
- Application Number
- CN202520209739.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-11
AI Technical Summary
In the current instrument transformer production process, the fixture structure is complex, the clamping process requires a large driving force, which affects the degree of automation and the difficulty of operation. In addition, the instrument transformer is easy to move during the clamping process.
A new clamping fixture is adopted, including a base plate, a clamping component and a driving component disposed on the base plate. The key point is that the fixed block, the movable block and the fixed component, the movable component and the driving component can effectively reduce the force applied by the operator during the clamping process of the current transformer, and reduce the difficulty of using the device fixture.
By designing a clamping assembly for current transformers, it is possible to effectively reduce the force required by operators during the clamping process, thereby reducing the difficulty of operation, improving the stability of clamping, and preventing the current transformers from shaking during transportation.
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Figure CN223658666U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of mutual inductor production auxiliary tool, specifically relates to a mutual inductor loading fixture. BACKGROUND
[0002] In the production and manufacture, detection etc. of mutual inductor, mutual inductor needs to be transferred between various stations, and the logistics carrier of mutual inductor currently mainly relies on tray, and when working, mutual inductor is placed on the tray, and after reaching a station, mutual inductor needs to be taken down manually and placed in the specified position of the station for processing or detection, and after processing or detection is completed, mutual inductor also needs to be placed into the tray for continuous operation. This production mode not only needs to consume a lot of manpower, but also influences the automation degree of mutual inductor production, and production efficiency is difficult to improve. A clamp appears in the prior art, the clamp utilizes clamping fingers to penetrate into mounting holes on both sides of the ears of mutual inductor, and the clamping fingers realize clamping of mutual inductor by adjusting the positions of the two clamping fingers, but the structure of the clamp is relatively complex, and mutual inductor will move with the clamping fingers during clamping, the contact area of the mounting hole and the clamping finger is small, and a larger driving force needs to be applied by the worker during clamping of the clamping finger to mutual inductor, which brings inconvenience to manual operation, and the use difficulty is relatively large. SUMMARY
[0003] In order to solve the problems in the prior art, the utility model provides a mutual inductor loading fixture, which can effectively reduce the force applied by the worker during clamping of mutual inductor, and reduce the use difficulty of the device fixture.
[0004] The specific technical scheme adopted by the utility model is as follows:
[0005] A mutual inductor loading fixture, comprising a base plate, a clamping assembly and a driving assembly arranged on the base plate, and the key lies in that the clamping assembly comprises a fixed block and a movable block, the fixed block and the movable block are alternately arranged on the base plate, a clamping cavity of mutual inductor is formed between the fixed block and the movable block, the fixed block is fixedly connected with the base plate, the movable block is connected with the driving end of the driving assembly, and the driving assembly drives the movable block to move towards the fixed block to clamp and fix mutual inductor.
[0006] A first positioning groove is arranged on the fixed block, a second positioning groove matched with the first positioning groove is arranged on the movable block, and the first positioning groove and the second positioning groove form the clamping cavity of mutual inductor in a matched mode.
[0007] The movable block comprises a driving block and a driven block, the driving block is connected with the driving end of the driving assembly, and the driven block is connected with the driving block by means of a connecting rod.
[0008] The movable block and the fixed block are connected in a guided mode by means of a guide rod.
[0009] The driving assembly comprises a mounting seat, a first connecting rod, a second connecting rod and a push rod, the mounting seat is fixedly connected with the bottom plate, the mounting seat, the first connecting rod, the second connecting rod and the push rod are sequentially hinged and form the first hinged shaft, the second hinged shaft and the third hinged shaft arranged in parallel, the push rod is connected with the mounting seat in a guide mode, the pushing end of the push rod is fixedly connected with the movable block, the push rod is arranged perpendicularly to the first hinged shaft, and a wrench is arranged on the first connecting rod.
[0010] The first hinged shaft and the third hinged shaft are located on the same horizontal plane, and the distance from the first hinged shaft to the third hinged shaft is smaller than the distance from the first hinged shaft to the wrench.
[0011] The second connecting rod is an arc-shaped plate arched upward, and the first connecting rod is provided with a clamping groove matched with the second connecting rod.
[0012] The transformer comprises a transformer body and a connecting plate, the connecting plate is installed at the bottom of the rectangular end of the transformer body, the connecting plate is arranged in close contact with the bottom plate, the first positioning groove and the second positioning groove are arranged in matched mode with the rectangular end of the transformer body, and the bottom of the fixed block and the movable block is respectively provided with the avoiding groove of the connecting plate.
[0013] The utility model discloses the beneficial effect is:
[0014] 1, the utility model discloses a clamping assembly one side is fixed block, and the fixed block is fixed block on the bottom plate, and the other side is movable block, and the movable block can move towards the fixed block on the bottom plate, and when clamping, the transformer is placed on the bottom plate and leans against the fixed block, and the driving assembly drives the movable block to move towards the fixed block, and the movable block and the fixed block cooperate and clamp the transformer, only the movable block is moved in the clamping process, and the transformer does not need to be moved, and the driving force required by the movable block movement is smaller, and manual operation is more convenient.
[0015] 2, the first connecting rod, the second connecting rod and the push rod form a connecting rod mechanism in the driving assembly, and the wrench can be pulled to drive the push rod to move on the mounting seat along the axial direction of the push rod, and the movement process of the push rod is stable and reliable, so that the push and pull of the movable block are realized.
[0016] 3, the first hinged shaft and the third hinged shaft are located on the same horizontal plane, the distance from the first hinged shaft to the third hinged shaft is smaller than the distance from the first hinged shaft to the wrench, that is, the length of the power arm is greater than the length of the resistance arm, and the convenience of operation is further improved.
[0017] 4, the first positioning groove and the second positioning groove are arranged in matched mode with the rectangular end of the transformer body, the contact area of the clamping assembly and the transformer body is increased, the stability between the transformer and the clamping assembly is improved when clamping, and the transformer is prevented from shaking during conveying or detection. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a diagram showing the clamping state of the current transformer according to this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of a current transformer;
[0021] In the attached diagram, 1 is the base plate, 2 is the fixed block, 3 is the movable block, 4 is the first positioning groove, 5 is the driving block, 6 is the driven block, 7 is the connecting rod, 8 is the guide rod, 9 is the mounting base, 10 is the first connecting rod, 11 is the second connecting rod, 12 is the push rod, 13 is the first hinge shaft, 14 is the second hinge shaft, 15 is the third hinge shaft, 16 is the wrench, 17 is the slot, 18 is the current transformer body, 1801 is the rectangular end, 19 is the connecting plate, and 20 is the second positioning groove. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0023] Specific implementation examples Figure 1 As shown, this utility model relates to a current transformer loading fixture, including a base plate 1, a clamping assembly and a driving assembly disposed on the base plate 1. The key feature is that the clamping assembly includes a fixed block 2 and a movable block 3. The fixed block 2 and the movable block 3 are alternately disposed on the base plate 1, and a clamping cavity for the current transformer is formed between the fixed block 2 and the movable block 3. The fixed block 2 is fixedly connected to the base plate 1, and the movable block 3 is connected to the driving end of the driving assembly. The driving assembly drives the movable block 3 to move towards the fixed block 2 to clamp and fix the current transformer.
[0024] In the initial state, the movable block 3 is far from the fixed block 2, facilitating the placement of the current transformer between the fixed block 2 and the movable block 3, bringing the current transformer into contact with the fixed block 2. The drive assembly then moves the movable block 3 towards the fixed block 2. When the movable block 3 and the current transformer come into contact, the movable block 3 and the fixed block 2 clamp the current transformer together. Neither the fixed block 2 nor the current transformer needs to move on the base plate 1. This loading fixture can position the current transformer at its final location during placement. During clamping, only the movable block 3 moves, and the movable block 3 does not need to push the current transformer. The driving force required by the operator during clamping is small, making manual operation more convenient.
[0025] A guide rod is connected between the fixed blocks 2. The guide rod passes through the movable block 3, and the movable block 3 is guided and connected to the fixed block 2 by means of the guide rod.
[0026] The fixed block 2 is provided with a first positioning groove 4, and the movable block 3 is provided with a second positioning groove 20 that matches the first positioning groove 4. The first positioning groove 4 and the second positioning groove 20 match to form the clamping cavity of the current transformer. Figure 2As shown, when placing the mutual inductor, the mutual inductor is placed in the first positioning groove 4 on the fixed block 2, and the mutual inductor is placed in abutment with the side wall of the first positioning groove 4, the first positioning groove 4 forms positioning for the mutual inductor, the driving assembly drives the movable block 3 to move towards the fixed block 2, until the side wall of the second positioning groove 20 contacts the mutual inductor, the movable block 3 and the fixed block 2 cooperate to clamp the mutual inductor. The first positioning groove 4 and the second positioning groove 20 form horizontal limiting for the mutual inductor, avoiding the mutual inductor from shaking on the bottom plate 1.
[0027] The movable block 3 includes a driving block 5 and a driven block 6, the driving block 5 is connected with the driving end of the driving assembly, and the driven block 6 is connected with the driving block 5 by means of a connecting rod 7, so that the connection structure between the driving assembly and the movable block 3 is optimized, and the driving assembly can realize synchronous movement of each movable block 3 by being connected with only the driving block 5.
[0028] The movable block 3 and the fixed block 2 are connected by means of a guide rod 8, so as to improve the cooperation precision between the second positioning groove 20 on the movable block 3 and the first positioning groove 4 on the fixed block 2, and enable the mutual inductor placed in the first positioning groove 4 to smoothly enter the second positioning groove 20. Preferably, the opening of the first positioning groove 4 and the second positioning groove 20 is provided with a chamfer, facilitating the mutual inductor to enter.
[0029] Further, the driving assembly includes a mounting seat 9, a first connecting rod 10, a second connecting rod 11 and a push rod 12, the mounting seat 9 is fixedly connected with the bottom plate 1, the mounting seat 9, the first connecting rod 10, the second connecting rod 11 and the push rod 12 are sequentially hinged and form parallelly arranged first, second and third hinge shafts 13, 14 and 15, the mounting seat 9 is provided with a guide hole, the push rod 12 is connected with the mounting seat 9 in a guided manner through the guide hole, the pushing end of the push rod 12 is fixedly connected with the movable block 3, the push rod 12 is arranged perpendicularly to the first hinge shaft 13, the first connecting rod 10 is provided with a wrench 16, the first connecting rod 10, the second connecting rod 11 and the push rod 12 form a connecting rod mechanism, the wrench 16 is pulled to make the first connecting rod 10 swing around the first hinge shaft 13, the second connecting rod 11 drives the push rod 12 to move on the mounting seat 9 along the axial direction of the push rod 12, the movement process of the push rod 12 is stable and reliable, thereby realizing the push-pull of the movable block 3.
[0030] Further, the first hinge shaft 13 and the third hinge shaft 15 are located on the same horizontal plane, and the distance from the first hinge shaft 13 to the third hinge shaft 15 is smaller than the distance from the first hinge shaft 13 to the wrench 16. The worker applies a force to the wrench 16, and the wrench 16 drives the first connecting rod 10 to rotate around the first hinge shaft 13. The second connecting rod 11 transmits the power to the push rod 12 to make the push rod 12 translate along its own axis, thereby realizing the pushing and pulling of the movable block 3. The first hinge shaft 13 is the fulcrum, the distance from the first hinge shaft 13 to the wrench 16 is the power arm, and the distance from the first hinge shaft 13 to the third hinge shaft 15 is the resistance arm. The power arm is longer than the resistance arm, so that a smaller force applied to the wrench 16 can realize the pushing and pulling of the push rod 12 to the movable block 3, further reducing the force that the worker needs to apply to the wrench 16, and reducing the difficulty of clamping the transformer. When the handle is released, the friction at the first hinge shaft 13, the second hinge shaft 14 and the third hinge shaft 15 can make the driving assembly self-locking. When the first hinge shaft 13, the second hinge shaft 14 and the third hinge shaft 15 are located on the same horizontal plane, the driving assembly is in a more stable state, preventing the movable block 3 from loosening with the fixed block 2.
[0031] The second connecting rod 11 is an upwardly arched plate, and the first connecting rod 10 is provided with a clamping groove 17 matched with the second connecting rod 11. When the wrench 16 rotates around the first hinge shaft 13 in the direction of the third hinge shaft 15, the movable block 3 moves towards the fixed block 2 to clamp the transformer, the second connecting rod 11 gradually enters the clamping groove 17 and contacts with the side wall of the clamping groove 17, the clamping groove 17 clamps the second connecting rod 11 to realize self-locking, further preventing the movable block 3 from loosening with the fixed block 2 during the conveying process.
[0032] Preferably, as shown in Figure 3 The transformer includes a transformer body 18 and a connecting plate 19. The connecting plate 19 is installed at the bottom of the rectangular end 1801 of the transformer body 18, and is arranged in close contact with the bottom plate 1. The first positioning groove 4 and the second positioning groove 20 are arranged in matched manner with the rectangular end 1801 of the transformer body 18, and the bottom of the fixed block 2 and the movable block 3 is respectively provided with a avoiding groove of the connecting plate 19. The first positioning groove 4 and the second positioning groove 20 have a large contact area with the transformer body 18, thereby improving the stability between the transformer and the clamping assembly during clamping, and preventing the transformer from shaking during conveying or detection.
Claims
1. A current transformer loading fixture, comprising a base plate (1), a clamping assembly and a driving assembly disposed on the base plate (1), characterized in that: The clamping assembly includes a fixed block (2) and a movable block (3). The fixed block (2) and the movable block (3) are alternately arranged on the base plate (1). A clamping cavity for the current transformer is formed between the fixed block (2) and the movable block (3). The fixed block (2) is fixedly connected to the base plate (1). The movable block (3) is connected to the driving end of the driving assembly. The driving assembly drives the movable block (3) to move towards the fixed block (2) to clamp and fix the current transformer.
2. The current transformer loading fixture according to claim 1, characterized in that: The fixed block (2) is provided with a first positioning groove (4), and the movable block (3) is provided with a second positioning groove (20) that matches the first positioning groove (4). The first positioning groove (4) and the second positioning groove (20) together form the clamping cavity of the transformer.
3. The current transformer loading fixture according to claim 1, characterized in that: The active block (3) includes an active block (5) and a driven block (6). The active block (5) is connected to the drive end of the drive assembly, and the driven block (6) is connected to the active block (5) via a connecting rod (7).
4. The current transformer loading fixture according to claim 1, characterized in that: The movable block (3) and the fixed block (2) are connected by a guide rod (8).
5. A current transformer loading fixture according to claim 1, characterized in that: The drive assembly includes a mounting base (9), a first connecting rod (10), a second connecting rod (11), and a push rod (12). The mounting base (9) is fixedly connected to the base plate (1). The mounting base (9), the first connecting rod (10), the second connecting rod (11), and the push rod (12) are sequentially hinged to form a first hinge shaft (13), a second hinge shaft (14), and a third hinge shaft (15) arranged in parallel. The push rod (12) is guided and connected to the mounting base (9). The pushing end of the push rod (12) is fixedly connected to the movable block (3). The push rod (12) is perpendicular to the first hinge shaft (13). A wrench (16) is provided on the first connecting rod (10).
6. A current transformer loading fixture according to claim 5, characterized in that: The first hinge shaft (13) and the third hinge shaft (15) are located on the same horizontal plane, and the distance from the first hinge shaft (13) to the third hinge shaft (15) is less than the distance from the first hinge shaft (13) to the wrench (16).
7. A current transformer loading fixture according to claim 5, characterized in that: The second link (11) is an upwardly arched arc plate, and the first link (10) is provided with a slot (17) that matches the second link (11).
8. A current transformer loading fixture according to claim 2, characterized in that: The current transformer includes a current transformer body (18) and a connecting plate (19). The connecting plate (19) is installed at the bottom of the rectangular end (1801) of the current transformer body (18). The connecting plate (19) is fitted to the base plate (1). The first positioning groove (4) and the second positioning groove (20) are matched with the rectangular end (1801) of the current transformer body (18). The bottom of the fixed block (2) and the movable block (3) are respectively provided with the clearance groove of the connecting plate (19).