A fixing device for grinding and producing weights

By designing the motor linkage rod and the support column telescopic rod, the weights are efficiently fixed and compatible, solving the problems of frequent motor drive and clamp replacement in existing technologies, and improving the reliability and service life of the equipment.

CN224274636UActive Publication Date: 2026-05-26SHANDONG SHUILING WEIGHT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SHUILING WEIGHT CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing positioning fixtures used in weight production require two motors to drive the clamping, resulting in an oversized device and frequent fixture replacements, which shortens the equipment's lifespan.

Method used

It adopts a motor and linkage rod design, combined with a support column and telescopic rod structure, and fixes the weights through clamps and support platforms. It is compatible with weights of different sizes and reduces manual operation and clamp replacement.

Benefits of technology

This improves the efficiency and versatility of the device, prevents weights from falling due to insufficient clamping force, and reduces maintenance costs and downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of weight production technology, and in particular to a fixing device for weight production and grinding. It includes a base plate, a support column fixedly connected to the rear upper side of the base plate, a telescopic rod slidably connected inside the support column, a motor fixedly connected to the upper end of the telescopic rod, a first linkage rod fixedly connected to the output end of the motor, second linkage rods rotatably connected to the left and right ends of the first linkage rod, a clamping plate rotatably connected to the end of the second linkage rod away from the first linkage rod, a sliding plate slidably connected to the rear end of the clamping plate, a controller fixedly connected to the upper end of the sliding plate, a sensor fixedly connected to the inner side of the clamping plate, and a clamp fixedly connected to the inner side of the sensor. Through the design and cooperation of the motor and the first linkage rod, the motor drives the clamping plate to clamp the weights inside, while the clamps inside the clamping plate clamp and fix weights of different sizes, eliminating the need for manual adjustment of the clamps and significantly reducing manual operation time.
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Description

Technical Field

[0001] This utility model relates to the field of weight production technology, and in particular to a fixing device for grinding weights during production. Background Technology

[0002] Weights are standard instruments used in mass measurement to compare the mass of an object being measured with that of the object being measured to determine its mass value. They play a crucial role in various scenarios that require precise mass measurement.

[0003] Patent specification CN222857662U discloses a positioning fixture for stainless steel weight production, including a base. A clamping device is located on the top of the base, comprising a clamping unit and a disassembly unit. The clamping unit is positioned on the top of the base, and the disassembly unit is located above the base. A placement platform is fixedly installed at the center of the top of the base. This positioning fixture for stainless steel weight production, by setting up the clamping unit, activates a motor to rotate a connecting rod. When the connecting rod is threadedly connected to two left and right moving blocks, the two moving blocks cause the clamping plates to move in opposite directions, clamping the weight on the top of the placement platform. This prevents the weight from shaking during grinding, improving grinding accuracy. It solves the problem in the prior art where, after clamping the weight, the weight is vibrated during grinding, causing the return spring to compress, resulting in weight shaking and affecting processing accuracy.

[0004] However, in implementing the relevant technology, the above-mentioned positioning fixture for stainless steel weight production has the following problems: the clamps are driven by motors set at both ends to hold the weight in the middle, which requires two motors to drive the device, reducing the motor efficiency and making the device too large. In addition, the weight fixing device requires changing different clamps when fixing different weights. The frequent disassembly and installation of the clamps will accelerate the wear of the fixing device and shorten the service life of the equipment. In view of this, a fixing device for weight production and grinding is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fixing device for the production and polishing of weights.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fixing device for grinding and producing weights, comprising a base plate, a support column fixedly connected to the rear side of the upper end of the base plate, a telescopic rod slidably connected inside the support column, a motor fixedly connected to the upper end of the telescopic rod, a first linkage rod fixedly connected to the output end of the motor, a second linkage rod rotatably connected to the left and right ends of the first linkage rod, a clamping plate rotatably connected to the end of the second linkage rod away from the first linkage rod, a sliding plate slidably connected to the rear end of the clamping plate, a controller fixedly connected to the upper end of the sliding plate, a sensor fixedly connected to the inner side of the clamping plate, a clamp fixedly connected to the inner side of the sensor, a first spring fixedly connected inside the telescopic rod, a locking plate fixedly connected to the end of the first spring away from the telescopic rod, and a button fixedly connected to the outer side of the locking plate.

[0007] As a further description of the above technical solution: the outer side of the clamping plate contacts the inner side of the support column, and the front and rear ends of the button are slidably connected to the inside of the support column. By pressing the button, the operator can adjust the vertical height of the clamp, so that the clamp can be compatible with different measuring equipment and improve the versatility of the device.

[0008] As a further description of the above technical solution: the sliding plate has positioning grooves at both the front and rear ends, and the clamping plate has a protrusion at the rear end. The shape and size of the protrusion's cross-section match the shape and size of the positioning grooves at both the front and rear ends of the sliding plate, so that the clamping plate can slide at the front end of the sliding plate.

[0009] As a further description of the above technical solution: the upper end of the support column is provided with a hollow structure, and the shape and size of the cross-section of the hollow structure are matched with the shape and size of the cross-section of the telescopic rod, so that the telescopic rod can slide inside the support column.

[0010] As a further description of the above technical solution: the telescopic rod has a cavity inside, and a through square groove is opened on the front and rear sides of the right end of the cavity. The first spring and the locking plate are both located in the cavity. The front and rear sides of the right end of the locking plate are provided with protrusions, and the shape and size of the cross-section of the protrusions match the shape and size of the cross-section of the square groove. The inner wall of the support column is provided with a positioning groove that matches the protrusion, so that the locking plate can be engaged with the telescopic rod through the support column, thereby fixing the vertical height of the telescopic rod.

[0011] As a further description of the above technical solution: the front end of the telescopic rod is rotatably connected to a support platform, and the lower end of the support platform is rotatably connected to a support plate, so that the support plate can support the weight from the bottom and prevent the weight from falling due to insufficient clamping force.

[0012] As a further description of the above technical solution: the front end of the telescopic rod is provided with a groove, and the shape and size of the inner contour of the groove are matched with the shape and size of the cross-section of the support plate, so that the support plate supports the support platform by engaging with the groove.

[0013] This utility model has the following beneficial effects:

[0014] The present invention relates to a fixing device for the production and grinding of weights. Through the design and cooperation of a motor and a first linkage rod, the motor drives the clamping plate to clamp the weights on the inner side. At the same time, the clamps set on the inner side of the clamping plate clamp and fix weights of different sizes. There is no need to manually adjust the clamps, which significantly reduces the manual operation time. In addition, the design of the support column and the telescopic rod allows the clamps to move in the vertical direction, making the clamps compatible with different measuring equipment and improving the versatility of the device.

[0015] The present invention designs a fixing device for weight production and grinding. Through the design and cooperation of the support platform and the support plate, the support platform can support excessively heavy weights, preventing the weights from falling due to insufficient clamping force. This can avoid equipment damage caused by weight falling off, reduce maintenance costs and downtime, and improve the long-term reliability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the clamping plate structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of the support column of this utility model;

[0019] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of the telescopic rod of this utility model;

[0020] Figure 5 This is a schematic diagram of the distribution structure of the support plate of this utility model.

[0021] Legend:

[0022] 1. Base plate; 2. Support column; 3. Telescopic rod; 4. Motor; 5. First linkage rod; 6. Second linkage rod; 7. Clamping plate; 8. Sliding plate; 9. Sensor; 10. Fixture; 11. First spring; 12. Card plate; 13. Button; 14. Support platform; 15. Support plate; 16. Controller. Detailed Implementation

[0023] Reference Figures 1 to 5This utility model provides a fixing device for weight production and grinding, including a base plate 1, a support column 2 welded to the rear side of the upper end of the base plate 1, a telescopic rod 3 slidably connected inside the support column 2, a motor 4 connected to the upper end of the telescopic rod 3 by bolts, a first linkage rod 5 welded to the output end of the motor 4, a second linkage rod 6 rotatably connected to the left and right ends of the first linkage rod 5, a clamping plate 7 rotatably connected to the end of the second linkage rod 6 away from the first linkage rod 5, a sliding plate 8 slidably connected to the rear end of the clamping plate 7, a controller 16 connected to the upper end of the sliding plate 8 by bolts, a sensor 9 connected to the inner side of the clamping plate 7 by bolts, a clamp 10 set inside the sensor 9, a first spring 11 welded inside the telescopic rod 3, a locking plate 12 welded to the end of the first spring 11 away from the telescopic rod 3, and a button 13 welded to the outer side of the locking plate 12.

[0024] As a further implementation of the above technical solution: the outer side of the clamping plate 12 contacts the inner side of the support column 2, and the front and rear ends of the button 13 are slidably connected to the inside of the support column 2. By pressing the button 13, the operator can adjust the vertical height of the clamp 10, so that the clamp 10 can be compatible with different measuring equipment and improve the versatility of the device.

[0025] As a further implementation of the above technical solution: the sliding plate 8 has positioning grooves at both ends, and the clamping plate 7 has a protrusion at the rear end. The shape and size of the protrusion's cross-section match the shape and size of the positioning grooves at both ends of the sliding plate 8, so that the clamping plate 7 can slide at the front end of the sliding plate 8.

[0026] As a further implementation of the above technical solution: the upper end of the support column 2 is provided with a hollow structure, and the shape and size of the cross-section of the hollow structure are matched with the shape and size of the cross-section of the telescopic rod 3, so that the telescopic rod 3 can slide inside the support column 2.

[0027] As a further implementation of the above technical solution: the telescopic rod 3 has a cavity inside, and a through square groove is opened on the front and rear sides of the right end of the cavity. The first spring 11 and the locking plate 12 are both located in the cavity. The front and rear sides of the right end of the locking plate 12 are provided with protrusions, and the shape and size of the cross-section of the protrusions match the shape and size of the cross-section of the square groove. The inner wall of the support column 2 is provided with a positioning groove that matches the protrusions, so that the locking plate 12 can be engaged with the telescopic rod 3 through the support column 2, thereby fixing the vertical height of the telescopic rod 3.

[0028] As a further implementation of the above technical solution: the front end of the telescopic rod 3 is rotatably connected to the support platform 14, and the lower end of the support platform 14 is rotatably connected to the support plate 15, so that the support plate 15 can support the weight from the bottom and prevent the weight from falling due to insufficient clamping force.

[0029] As a further implementation of the above technical solution: the front end of the telescopic rod 3 is provided with a groove, and the shape and size of the inner contour of the groove are matched with the shape and size of the cross-section of the support plate 15, so that the support plate 15 supports the support platform 14 by engaging with the groove.

[0030] The controller 16 and sensor 9 used in this manual are common structures on the market, specifically model S7-1200 and PT301, respectively. Since no internal modifications have been made to them in this manual, they will not be described in detail.

[0031] Working principle:

[0032] When using this utility model, press and hold button 13 to move the inner clamping plate 12 and compress the first spring 11, causing the clamping plate 12 to separate from the support column 2, thereby adjusting the vertical height of the telescopic rod 3 inside the support column 2. Then start the motor 4, and the output end of the motor 4 drives the first linkage rod 5 to rotate. The first linkage rod 5 drives the second linkage rod 6, and the second linkage rod 6 drives the clamping plate 7 to move. Since the clamping plate 7 is slidably connected to the sliding plate 8, the clamping plate 7 moves horizontally under the action of the second linkage rod 6, thereby clamping and fixing the weight inside. The sensor 9 monitors the pressure of the clamp 10 and transmits the electrical signal to the controller 16. The controller 16 controls the motor 4 through the electrical signal. For excessively heavy weights, the support plate 15 is engaged with the groove at the front end of the telescopic rod 3, so that the support platform 14 can support the bottom of the weight and prevent the weight from falling onto the base plate 1.

[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing device for grinding of weight production, comprising a base plate (1), characterized in that: A support column (2) is fixedly connected to the rear side of the upper end of the base plate (1). A telescopic rod (3) is slidably connected inside the support column (2). A motor (4) is fixedly connected to the upper end of the telescopic rod (3). A first linkage rod (5) is fixedly connected to the output end of the motor (4). A second linkage rod (6) is rotatably connected to the left and right ends of the first linkage rod (5). A clamping plate (7) is rotatably connected to the end of the second linkage rod (6) away from the first linkage rod (5). A sliding plate (8) is slidably connected to the rear end of the clamping plate (7). A controller (16) is fixedly connected to the upper end of the sliding plate (8). A sensor (9) is fixedly connected to the inner side of the clamping plate (7). A clamp (10) is fixedly connected to the inner side of the sensor (9). A first spring (11) is fixedly connected inside the telescopic rod (3). A locking plate (12) is fixedly connected to the end of the first spring (11) away from the telescopic rod (3). A button (13) is fixedly connected to the outer side of the locking plate (12).

2. The fixing device for grinding of a weight production according to claim 1, characterized in that: The outer side of the card plate (12) contacts the inner side of the support column (2), and the front and rear ends of the button (13) are slidably connected to the inside of the support column (2).

3. The fixing device for grinding of a weight production according to claim 1, characterized in that: The sliding plate (8) has positioning grooves at both ends, and the clamping plate (7) has a protrusion at the rear end. The shape and size of the protrusion's cross-section match the shape and size of the positioning grooves at both ends of the sliding plate (8).

4. The fixing device for grinding of a weight production according to claim 1, characterized in that: The upper end of the support column (2) is provided with a hollow structure, and the shape and size of the cross-section of the hollow structure are matched with the shape and size of the cross-section of the telescopic rod (3).

5. The fixing device for grinding and producing weights according to claim 1, characterized in that: The telescopic rod (3) has a cavity inside, and a through square groove is provided on the front and rear sides of the right end of the cavity. The first spring (11) and the card plate (12) are both inside the cavity. The card plate (12) has a protrusion on the front and rear sides of the right end, and the shape and size of the cross-section of the protrusion matches the shape and size of the cross-section of the square groove. The inner wall of the support column (2) is provided with a positioning groove that matches the protrusion.

6. The fixing device for grinding and producing weights according to claim 1, characterized in that: The front end of the telescopic rod (3) is rotatably connected to a support platform (14), and the lower end of the support platform (14) is rotatably connected to a support plate (15).

7. The fixing device for grinding and producing weights according to claim 1, characterized in that: The telescopic rod (3) has a groove at its front end, and the shape and size of the inner contour of the groove match the shape and size of the cross-section of the support plate (15).