A positioning and clamping fixture for a brake pad support plate

By designing a fixture with support, clamping, and positioning components, the problem of inaccurate positioning of the brake pad support plate during the machining of the reference groove was solved, achieving high-precision and high-efficiency machining results.

CN224488914UActive Publication Date: 2026-07-14CHANGZHOU ZHUDING MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU ZHUDING MASCH CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

When machining the reference groove, the existing brake pad support plate lacks pre-set positioning holes, resulting in inaccurate fixture positioning, which affects machining accuracy and yield.

Method used

A fixture comprising a support component, a clamping component, and a positioning component is designed. The positioning block is precisely positioned by rotating the swing arm to drive the positioning block into the groove of the product, and the movable block is clamped by adjusting the component to drive it up and down. The positioning and clamping operations are performed separately.

Benefits of technology

This ensures high positioning accuracy and stability during the processing, avoids errors caused by clamping, and improves processing accuracy and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fixture, especially a positioning and clamping fixture for brake pad support plate, including base and set up on the base a plurality of support components, clamping component and positioning component, support component includes support plate for supporting product, clamping component sets up in support component both sides, including support seat, briquetting, movable block and the adjusting spare that passes through briquetting and movable block, rotates adjusting spare and drives movable block up and down movement, realizes the clamping to product, positioning component sets up on the base in clamping component one side, including base, swing arm, pivot and positioning block, swing arm rotates along pivot and drives positioning block to snap into the recess of product, carries out accurate positioning, makes positioning block snap into the recess of product through swing arm, ensures high accuracy positioning, avoids the error that traditional fixture relies on edge positioning leads to, clamps and locates separately, avoids the interference to positioning in the clamping process, improves the uniformity and stability of clamping force, ensures product fixation.
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Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a positioning and clamping fixture for a brake pad support plate. Background Technology

[0002] Brake pad support plates are key structural components used for the installation and positioning of brake pad assemblies, and are widely used in railway vehicle braking systems, mechanical equipment motion control mechanisms, and other applications. Brake pad support plates typically have high dimensional accuracy and geometric tolerance requirements to ensure stable support and precise braking performance after installation into the complete machine. During the machining process, a reference groove needs to be machined on its large flat surface to serve as a positioning reference during subsequent reverse machining or assembly.

[0003] Currently, when machining the reference groove on the brake pad support plate, most commonly used positioning and clamping fixtures employ direct clamping and fixing. This involves fixing the workpiece to the worktable using an upper pressure block or plate, and then directly machining the reference groove on its large surface. However, since the brake pad support plate itself does not have pre-drilled positioning holes in its raw state, and the overall precision requirements are high, relying solely on surface clamping of the fixture to determine the position can lead to slight workpiece offsets during clamping. This can affect the positional accuracy of the reference groove, consequently impacting the machining accuracy of subsequent products and resulting in a lower yield rate.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] This invention provides a positioning and clamping fixture for brake pad support plates, thereby effectively solving the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a positioning and clamping fixture for a brake pad support plate, comprising: a base and a plurality of support components, clamping components and positioning components spaced apart on the base;

[0007] The support assembly includes a support plate for supporting the product;

[0008] The clamping assembly is disposed on both sides of the support assembly, including a support base, a pressure block disposed on the top of the support base, a movable block disposed inside the support base, and an adjusting member passing through the pressure block and the movable block. Rotating the adjusting member is used to drive the movable block to move up and down, thereby achieving clamping of the product.

[0009] The positioning component is mounted on a base on one side of one of the clamping components, including a base, a swing arm mounted on the base, a rotating shaft mounted at the end of the base and passing through one end of the swing arm, and a positioning block mounted at the other end of the swing arm. The swing arm rotates along the rotating shaft to drive the positioning block into the groove of the product for positioning the product.

[0010] Furthermore, each of the support components also includes a T-block;

[0011] The support plate includes a horizontal plate, two vertical plates perpendicular to the horizontal plate, and a locking member connecting the vertical plates and the T-shaped block. Each vertical plate is provided with an oblong hole for adjusting the height of the support plate.

[0012] Furthermore, the positioning block has protrusions at both ends, and the shape of the protrusions is adapted to the groove of the product.

[0013] Furthermore, the positioning block is made of an elastic material to provide a flexible clamping effect.

[0014] Furthermore, the support base is provided with a through groove in the width direction, and the movable block is disposed in the through groove and moves up and down along the through groove;

[0015] The movable block includes a body, and a first flange and a second flange disposed at both ends of the body, with the first flange and the second flange facing the same side. The first flange is used to limit the distance the movable block rises, and the second flange is used to clamp the product.

[0016] Furthermore, the second flange surface is provided with an anti-slip layer to enhance friction with the product surface.

[0017] Furthermore, the swing arm includes a rotating part and a force-receiving part with a T-shaped structure.

[0018] Furthermore, a transition angle is provided between the rotating part and the force-receiving part.

[0019] Furthermore, a square block is provided at one end of the rotating part, and the rotating shaft passes through the square block. The rotation of the rotating shaft drives the square block to rotate.

[0020] Furthermore, the adjusting element is a bolt.

[0021] The beneficial effects of this utility model are as follows: This utility model uses a rotating swing arm to make the positioning block fit into the groove on the product, thereby accurately positioning the product and avoiding the positioning errors that may be caused by traditional fixtures that rely on edge positioning or simple clamping, thus ensuring high positioning accuracy in the processing process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the brake pad support plate product;

[0024] Figure 2 This is a schematic diagram of the positioning and clamping fixture used for the brake pad support plate;

[0025] Figure 3 This is a front view of the positioning and clamping fixture used for the brake pad support plate;

[0026] Figure 4 A schematic diagram of the supporting components;

[0027] Figure 5 This is a schematic diagram of the clamping assembly.

[0028] Figure 6 This is a schematic diagram of the active block structure;

[0029] Figure 7 This is a schematic diagram of the positioning component.

[0030] Reference numerals: 1. Base; 2. Support assembly; 21. Support plate; 211. Horizontal plate; 212. Vertical plate; 212a. Waist-shaped hole; 22. T-block; 3. Clamping assembly; 31. Support seat; 311. Through groove; 32. Pressure block; 33. Movable block; 331. Body; 332. First flange; 333. Second flange; 34. Adjusting component; 4. Positioning assembly; 41. Base; 42. Swing arm; 421. Rotating part; 422. Force-bearing part; 423. Transition angle; 424. Square block; 43. Positioning block; 431. Protrusion; 44. Rotating shaft;

[0031] 01. Product; 011. Groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] like Figures 1 to 7 As shown: A positioning and clamping fixture for a brake pad support plate includes: a base 1 and a plurality of support components 2, clamping components 3 and positioning components 4 spaced apart on the base 1;

[0036] Support component 2 includes a support plate 21 for supporting product 01;

[0037] The clamping assembly 3 is disposed on both sides of the support assembly 2, including a support base 31, a pressure block 32 disposed on the top of the support base 31, a movable block 33 disposed inside the support base 31, and an adjusting member 34 passing through the pressure block 32 and the movable block 33. The rotating adjusting member 34 is used to drive the movable block 33 to move up and down, thereby achieving clamping of the product 01.

[0038] The positioning component 4 is disposed on a base 1 on one side of one of the clamping components 3, including a base 41, a swing arm 42 disposed on the base 41, a rotating shaft 44 disposed at the end of the base 41 and passing through one end of the swing arm 42, and a positioning block 43 disposed at the other end of the swing arm 42. The swing arm 42 rotates along the rotating shaft 44 to drive the positioning block 43 to be engaged in the groove 011 of the product 01 for positioning the product 01.

[0039] In use, first place product 01 on support plate 21 of support component 2, rotate swing arm 42 to horizontal position, positioning block 43 presses into groove 011 of product 01 to position product 01, then rotate adjustment component 34 to move movable block 33 upward to clamp both sides of product 01, and the rotation of swing arm 42 drives positioning block 43 to accurately engage in groove 011 of product 01, thus achieving stable positioning of product 01 and avoiding accuracy errors caused by clamping.

[0040] This fixture utilizes the structural design of the swing arm 42 and the positioning block 43. By rotating the swing arm 42, the positioning block 43 is engaged in the groove 011 on the product 01, thereby accurately positioning the product 01. This avoids the positioning errors that may occur in traditional fixtures that rely on edge positioning or simple clamping, ensuring high positioning accuracy during processing. By rotating the adjusting component 34, the movable block 33 is driven to move up and down, thereby stably clamping the product 01. Since clamping and positioning are performed separately, interference with positioning during clamping is avoided, improving the uniformity and stability of the clamping force and ensuring the fixed state of the product 01 during processing.

[0041] The design of this clamp is highly versatile and can be adapted to products 01 such as brake pad support plates of different specifications. As long as the upper part of the product 01 has a suitable groove 011, positioning and clamping can be completed by adjusting the swing arm 42 and the clamping assembly 3. It has good flexibility and wide applicability.

[0042] Because of the simple structure of the fixture, users only need to rotate the swing arm 42 and the adjusting part 34 to easily complete the positioning and clamping operations without complicated adjustments or settings, which improves the efficiency of use and reduces human error and processing time.

[0043] Precise positioning and clamping ensure the stability of product 01 during processing, effectively avoiding processing accuracy errors. Because the positioning and clamping operations are simple, operators can complete workpiece clamping more quickly, thereby improving overall production efficiency.

[0044] As one specific implementation of the arrangement of the support component 2, clamping component 3 and positioning component 4: the number of support components 2 is one, the number of clamping components 3 is two, and the number of positioning components 4 is one;

[0045] Two clamping components are set on both sides of the support component 2, and the positioning component 4 is set on one side of the clamping component 3 for clamping a product 01. Specifically, the positioning component 4 enables the product 01 to be accurately positioned, thereby avoiding processing errors caused by inaccurate clamping position. Through the cooperation of the two clamping components 3 and the positioning component 4, the fixture has high precision and high stability during the clamping process.

[0046] Another specific implementation of the arrangement of the support component 2, clamping component 3, and positioning component 4: (e.g.) Figure 2 , 3 As shown, two products 01 can be positioned and clamped simultaneously, improving efficiency. There are two support components 2, three clamping components 3, and two positioning components 4.

[0047] Three clamping components 3 are respectively spaced apart from two support components 2, and positioning components 4 are symmetrically arranged along the middle clamping component 3. They are used to clamp two products 01 to improve efficiency. Alternatively, other numbers of support components 2, clamping components 3 and positioning components 4 can be combined to achieve positioning and clamping of multiple products 01. All of these are within the protection scope of this application.

[0048] As a preferred embodiment of the above embodiments, each support component 2 further includes a T-shaped block 22;

[0049] The support plate 21 includes a horizontal plate 211, two vertical plates 212 perpendicular to the horizontal plate 211, and a locking member connecting the vertical plates 212 and the T-block 22. Each vertical plate 212 is provided with a waist-shaped hole 212a for adjusting the height of the support plate 21. In this embodiment, the locking member is a bolt. By providing a waist-shaped hole 212a on each vertical plate 212, the user can adjust the height of the support plate 21 according to the different thicknesses of the product 01, so that the fixture can flexibly adapt to the brake pad support plate of different sizes, avoiding the trouble of changing the fixture due to the different thicknesses of the product 01, thereby improving the versatility and applicability of the fixture.

[0050] In this embodiment, the two ends of the positioning block 43 are provided with protrusions 431. The shape of the protrusions 431 is adapted to the groove 011 of the product 01. The matching of the protrusions 431 and the groove 011 not only provides accurate positioning function, but also provides stronger anti-slip capability during the positioning process. Even during the clamping process, the cooperation between the product 01 and the positioning block 43 can effectively prevent position displacement caused by external force, thereby improving the stability of the fixture.

[0051] The positioning block 43 is made of elastic material to provide a flexible clamping effect. Specifically, the elastic material allows the positioning block 43 to deform appropriately according to the shape and slight changes in the surface of the product 01 during the clamping process, thereby providing a softer and more uniform clamping force. This effectively avoids damage to the surface of the groove 011 of the product 01 caused by rigid clamping, and is especially suitable for the easily damaged surface of the product 01.

[0052] As a preferred embodiment of the above, the support base 31 is provided with a through groove 311 in the width direction, and the movable block 33 is disposed in the through groove 311 and moves up and down along the through groove 311;

[0053] The movable block 33 includes a body 331 and a first flange 332 and a second flange 333 disposed at both ends of the body 331. The first flange 332 and the second flange 333 are disposed on the same side. The first flange 332 is used to limit the distance the movable block 33 rises, and the second flange 333 is used to clamp the product 01. Specifically, the design of the first flange 332 limits the rising distance of the movable block 33, thereby effectively controlling the range of movement of the movable block 33 during the clamping process, ensuring the uniformity and stability of the clamping force. This structure can prevent the movable block 33 from rising excessively, resulting in uneven clamping force or unstable clamping, thereby ensuring the fixation and positional accuracy of the product 01 during the processing.

[0054] In this embodiment, the surface of the second flange 333 is provided with an anti-slip layer to enhance the friction with the surface of the product 01, thereby further improving the clamping effect.

[0055] The swing arm 42 includes a rotating part 421 and a force-receiving part 422 with a T-shaped structure. Specifically, the size of the force-receiving part 422 is larger than the width of the rotating part 421, which allows the force-receiving part 422 to withstand greater forces during use, thereby enhancing the stability of the swing arm 42.

[0056] As a preferred embodiment of the above, a transition angle 423 is provided between the rotating part 421 and the force-bearing part 422. Specifically, the transition angle 423 can be a C-angle or a rounded corner, both of which are within the protection scope of this application. The transition angle 423 can effectively disperse the force, avoid material fatigue, cracks or deformation caused by stress concentration, and improve the overall strength and durability of the fixture.

[0057] In this embodiment, a square block 424 is provided at one end of the rotating part 421, and the rotating shaft 44 passes through the square block 424. The rotation of the rotating shaft 44 drives the square block 424 to rotate. The square block 424 rotates 90° on one side, making the operation more intuitive. The operator can clearly see the rotation process of the square block 424, thus making it easier to understand and control the working state of the fixture.

[0058] Among them, the adjusting component 34 is a bolt. By using a bolt as the adjusting component 34, the operation process is simpler and more intuitive, and the cost of fixture manufacturing is reduced.

[0059] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping fixture for a brake pad support plate, characterized in that, include: A base and a plurality of support components, clamping components and positioning components spaced apart on the base; The support assembly includes a support plate for supporting the product; The clamping assembly is disposed on both sides of the support assembly, including a support base, a pressure block disposed on the top of the support base, a movable block disposed inside the support base, and an adjusting member passing through the pressure block and the movable block. Rotating the adjusting member is used to drive the movable block to move up and down, thereby achieving clamping of the product. The positioning component is mounted on a base on one side of one of the clamping components, including a base, a swing arm mounted on the base, a rotating shaft mounted at the end of the base and passing through one end of the swing arm, and a positioning block mounted at the other end of the swing arm. The swing arm rotates along the rotating shaft to drive the positioning block into the groove of the product for positioning the product.

2. The positioning and clamping fixture for the brake pad support plate according to claim 1, characterized in that, Each of the support components also includes a T-block; The support plate includes a horizontal plate, two vertical plates perpendicular to the horizontal plate, and a locking member connecting the vertical plates and the T-shaped block. Each vertical plate is provided with an oblong hole for adjusting the height of the support plate.

3. The positioning and clamping fixture for the brake pad support plate according to claim 1, characterized in that, The positioning block has protrusions at both ends, and the shape of the protrusions is adapted to the groove of the product.

4. The positioning and clamping fixture for the brake pad support plate according to claim 1, characterized in that, The positioning block is made of an elastic material to provide a flexible clamping effect.

5. The positioning and clamping fixture for the brake pad support plate according to claim 1, characterized in that, The support base has a through groove in the width direction, and the movable block is disposed in the through groove and moves up and down along the through groove; The movable block includes a body, and a first flange and a second flange disposed at both ends of the body, with the first flange and the second flange facing the same side. The first flange is used to limit the distance the movable block rises, and the second flange is used to clamp the product.

6. The positioning and clamping fixture for the brake pad support plate according to claim 5, characterized in that, The second flange surface is provided with an anti-slip layer to enhance friction with the product surface.

7. The positioning and clamping fixture for the brake pad support plate according to claim 1, characterized in that, The swing arm includes a rotating part and a force-bearing part with a T-shaped structure.

8. The positioning and clamping fixture for the brake pad support plate according to claim 7, characterized in that, A transition angle is provided between the rotating part and the force-receiving part.

9. The positioning and clamping fixture for the brake pad support plate according to claim 7, characterized in that, A square block is provided at one end of the rotating part, and the rotating shaft passes through the square block. The rotation of the rotating shaft drives the square block to rotate.

10. The positioning and clamping fixture for the brake pad support plate according to claim 1, characterized in that, The adjusting component is a bolt.