A grinding machine positioning fixture

Abstract

This utility model relates to the technical field of grinding machine positioning equipment, and more particularly to a grinding machine positioning fixture, including a base and a positioning assembly, including a positioning seat on the base, a stop bar arranged along the length direction of the positioning seat, and grooves spaced apart on the stop bar; a clamping assembly, which is connected to a linkage assembly and a power assembly. The power assembly drives the linkage assembly to move, thereby moving the clamping assembly toward the positioning assembly and fixing the workpiece in the groove. This utility model achieves rapid clamping and fixing of multiple workpieces by using a power assembly to drive the linkage assembly and move the clamping assembly toward the positioning assembly to fix the workpiece in the groove. Furthermore, the design of the clamping plate and the first rotating shaft allows the clamping plate to swing along the first rotating shaft, thereby enabling the first and second pressure bars to clamp and fix workpieces of different sizes, improving applicability.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine positioning equipment technology, and in particular to a grinding machine positioning fixture. Background Technology

[0002] Surface grinders are widely used in the machining field due to their high efficiency and precision. Grinding operations on surface grinders typically rely on the magnetic force generated by an electromagnetic chuck to hold the workpiece firmly on the worktable. However, for specific machining requirements such as grinding the end faces of cylindrical workpieces, where the workpiece itself cannot be effectively held by magnetic force or requires precise positioning, additional specialized fixtures must be used for clamping and fixing before the entire fixture is attached to the electromagnetic chuck for machining.

[0003] Currently, traditional flat-jaw vises are commonly used for clamping cylindrical parts during end face grinding. However, this method has significant drawbacks:

[0004] Low single-piece clamping efficiency: Flat-jaw vises can usually only reliably clamp one workpiece at a time, making it difficult to process multiple workpieces simultaneously, resulting in low production efficiency.

[0005] Poor stability of multiple clamping: If multiple workpieces are clamped simultaneously on a vise, it is difficult to ensure that all workpieces are clamped evenly and firmly. During the grinding process, especially when rotating at high speed, the workpieces are very likely to loosen or even be thrown out due to insufficient or uneven clamping force, which poses a serious safety hazard and cannot guarantee the machining accuracy.

[0006] Poor adaptability and inability to guarantee equal height: For cylindrical workpieces with slight differences in size, flat-jaw vises are difficult to self-adjust and cannot ensure that the end faces of all workpieces are at the same precise height (equal height), especially unable to meet the process requirements of grinding multiple workpiece end faces at equal height.

[0007] Therefore, there is an urgent need for a special grinding machine positioning fixture that can stably clamp multiple cylindrical workpieces at the same time and adapt to different workpiece sizes, so as to improve production efficiency, ensure operational safety and meet the needs of high-precision machining. Summary of the Invention

[0008] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a positioning fixture for a grinding machine.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] Design a positioning fixture for a grinding machine, including a base and also...

[0011] The positioning assembly includes a positioning seat disposed on the base, a stop bar disposed along the length direction of the positioning seat, and grooves spaced apart on the stop bar;

[0012] The clamping assembly is connected to the linkage assembly and the power assembly. The power assembly drives the linkage assembly to move, thereby moving the clamping assembly toward the positioning assembly and fixing the workpiece in the groove. The clamping assembly includes a plurality of spaced clamping plates, a rotating shaft connected to the clamping plates, and pressure strips one and two arranged along the length of the clamping plates. Pressure strips one and two correspond to two adjacent grooves on the stop strip.

[0013] Furthermore, the linkage component includes a push plate 1 for pushing two adjacent clamping plates, a push plate 2 for pushing two adjacent push plates 1, a linkage part 1 connecting the push plate 1 and the clamping plates, and a linkage part 2 connecting the push plate 1 and the push plate 2.

[0014] Furthermore, the linkage part one includes a guide groove one formed on the base, a guide block one that slides with the guide groove one, and a rotating shaft two that is rotatably connected to the end of the push plate one. The guide block one connects the rotating shaft one and the rotating shaft two.

[0015] Furthermore, the linkage part two includes a guide groove two formed on the base, a guide block two that slides with the guide groove two, a rotating shaft three that is rotatably connected to the end of the push plate two, and a rotating shaft four that is rotatably connected to the middle of the push plate one. The guide block two connects the rotating shaft three and the rotating shaft four.

[0016] Furthermore, the power assembly includes a guide groove three formed on the base, a guide block three slidably engaged with the guide groove three, a rotating shaft five connecting the guide block three and the middle part of the push plate two, a transverse block connected to the guide block three via a rotating shaft six, and an adjustment part for pushing the transverse block to move along the guide groove three.

[0017] Furthermore, the adjustment unit includes a fixed seat on the base, a screw threaded to the fixed seat, a through groove on the transverse block, a rotating rod at one end of the screw thread and extending into the through groove, and two limiting plates on the rotating rod.

[0018] The grinding machine positioning fixture proposed in this utility model has the following advantages:

[0019] This utility model uses a power component to drive a linkage component, which in turn moves the clamping component toward the positioning component, fixing the workpiece in the groove. This allows for the rapid clamping and fixing of multiple workpieces with good fixing effect and significantly improved safety. Furthermore, the design of the clamping plate and the first rotating shaft allows the clamping plate to swing along the first rotating shaft, enabling the first and second pressure bars to clamp and fix workpieces of different sizes, thus improving applicability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is another structural schematic diagram of the present invention; Detailed Implementation

[0022] 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.

[0023] Example, refer to Figure 1-2 A grinding machine positioning fixture includes a base 1, and also includes...

[0024] The positioning component 2 includes a positioning seat 201 disposed on the base 1, a stop bar 202 disposed along the length direction of the positioning seat 201, and grooves 203 spaced out on the stop bar 202. Preferably, in this embodiment, the positioning seat 201 is fixed to the base 1 by bolts.

[0025] The clamping assembly 3 is connected to the linkage assembly 4 and the power assembly 5. The power assembly 5 drives the linkage assembly 4 to move, thereby moving the clamping assembly 3 towards the positioning assembly 2 and fixing the workpiece in the groove 203. The clamping assembly 3 includes multiple spaced clamping plates 301, a rotating shaft 302 rotatably connected to the clamping plates 301, and pressure bars 303 and 304 arranged along the length of the clamping plates 301. Pressure bars 303 and 304 correspond to two adjacent grooves 203 on the stop bar 202, respectively. Preferably... In this embodiment, there are four clamping plates 301 and eight grooves 203, with two grooves 203 corresponding to one clamping plate 301. The power component 5 drives the linkage component 4 to push the clamping plate 301 to move towards the positioning component. The first pressure bar 303 and the second pressure bar 304 press into the adjacent grooves 203 to clamp the workpiece. The clamping plate 301 can swing around the first rotating shaft 302 to adapt to the workpiece size. Through the cooperation of multiple sets of pressure bars and grooves 203, multiple workpieces can be clamped at the same time. The swinging design of the clamping plate 301 is compatible with workpieces of different sizes, improving its applicability.

[0026] This utility model uses a power component 5 to drive a linkage component 4, which in turn moves a clamping component 3 toward a positioning component 2, fixing the workpiece in the groove 203. This allows for the rapid clamping and fixing of multiple workpieces, providing a good fixing effect and significantly improving safety. Furthermore, the design of the clamping plate 301 and the first rotating shaft 302 allows the clamping plate 301 to swing along the first rotating shaft 302, thereby enabling the first pressure bar 303 and the second pressure bar 304 to clamp and fix workpieces of different sizes, improving applicability.

[0027] In an optional embodiment of this utility model, the linkage component 4 includes a push plate 401 for pushing two adjacent clamping plates 301, a push plate 402 for pushing two adjacent push plates 401, a linkage part 403 connecting the push plate 401 and the clamping plate 301, and a linkage part 404 connecting the push plate 401 and the push plate 402. Preferably, in this embodiment, there are two push plates 401 and one push plate 402. The push plate 402 is driven by the power component 5 to push multiple push plates 401, and the linkage part 403 drives the clamping plates 301 to move synchronously, ensuring that all clamping plates move synchronously and the clamping force is uniform.

[0028] In an optional embodiment of this utility model, the linkage part 403 includes a guide groove 4031 formed on the base 1, a guide block 4032 that slides with the guide groove 4031, and a rotating shaft 4033 that is rotatably connected to the end of the push plate 401. The guide block 4032 connects the rotating shaft 302 and the rotating shaft 4033. Preferably, there are four linkage parts 403 in this embodiment. The two ends of the guide block 4032 are respectively connected to the bottom of the rotating shaft 302 and the rotating shaft 4033. The cross-section of the guide groove 4031 is T-shaped. When the push plate 401 moves, the rotating shaft 4033 pushes the guide block 4032 to slide along the T-shaped groove, causing the clamping plate 301 to swing around the rotating shaft 302. The T-shaped groove can prevent the guide block 4032 from coming off and ensure the stability of the movement trajectory of the clamping plate 301.

[0029] In an optional embodiment of this utility model, the second linkage part 404 includes a second guide groove 4041 formed on the base 1, a second guide block 4042 that slides with the second guide groove 4041, a third rotating shaft 4043 that is rotatably connected to the end of the second push plate 402, and a fourth rotating shaft 4044 that is rotatably connected to the middle of the first push plate 401. The second guide block 4042 connects the third rotating shaft 4043 and the fourth rotating shaft 4044. Preferably, in this embodiment, there are two second linkage parts 404, and the two ends of the second guide block 4042 are... The bottom of the rotating shaft 4043 and the rotating shaft 4044 are not connected. The cross-section of the guide groove 4041 is T-shaped and is located between two adjacent guide grooves 4031. The push plate 402 moves and pushes the guide block 4042 to slide along the T-shaped groove through the rotating shaft 4043. The guide block 4042 drives the push plate 401 to move through the rotating shaft 4044. The guide block 4042 evenly transmits the thrust to multiple push plates 401. The guide groove 4041 is located between the guide grooves 4031 to avoid movement conflicts.

[0030] In an optional embodiment of this utility model, the power assembly 5 includes a guide groove 3 501 formed on the base 1, a guide block 3 502 that slides with the guide groove 3 501, a rotating shaft 503 connecting the guide block 3 502 and the middle of the push plate 2 402, a transverse block 506 connected to the guide block 3 502 via a rotating shaft 6 504, and an adjustment part 505 for pushing the transverse block 504 to move along the guide groove 3 501. The cross-section of the guide groove 3 501 is T-shaped. The adjustment part 505 pushes the transverse block 506, causing the guide block 3 502 to slide along the guide groove 3 501, and drives the push plate 2 402 via the rotating shaft 503. The guide groove 3 501 constrains the direction of movement to avoid off-center loading.

[0031] In an optional embodiment of this utility model, the adjusting part 505 includes a fixed seat 5051 disposed on the base 1, a lead screw 5052 screwed to the fixed seat 5051, a through groove 5053 opened on the transverse block 506, a rotating rod 5054 disposed at one end of the lead screw 5052 and extending into the through groove 5053, and two limiting plates 5055 disposed on the rotating rod 5054. Preferably, in this embodiment, the rotating rod 5054 and the fixed seat 5051 are rotatably connected. After the lead screw 5052 rotates, it drives the rotating rod 5054 to move, thereby driving the transverse block 504 to move, realizing high-precision displacement control, adjustable clamping force, and the limiting plate 5055 can prevent the rotating rod 5054 from disengaging from the through groove 5053, ensuring reliability.

[0032] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent 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, and therefore should not be construed as a limitation on this patent application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0035] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A positioning fixture for a grinding machine, comprising a base (1), characterized in that: Also includes The positioning component (2) includes a positioning seat (201) provided on the base (1), a stop bar (202) provided along the length direction of the positioning seat (201), and grooves (203) spaced apart on the stop bar (202); The clamping assembly (3) is connected to the linkage assembly (4) and the power assembly (5). The power assembly (5) pushes the linkage assembly (4) to move, thereby moving the clamping assembly (3) toward the positioning assembly (2) to fix the workpiece in the groove (203). The clamping assembly (3) includes a plurality of spaced clamping plates (301), a rotating shaft (302) rotatably connected to the clamping plates (301), and pressure strips (303) and (304) arranged along the length of the clamping plates (301). The pressure strips (303) and (304) correspond to two adjacent grooves (203) on the stop strip (202).

2. The grinding machine positioning fixture according to claim 1, characterized in that: The linkage component (4) includes a push plate one (401) for pushing two adjacent clamping plates (301), a push plate two (402) for pushing two adjacent push plates one (401), a linkage part one (403) connecting the push plate one (401) and the clamping plate (301), and a linkage part two (404) connecting the push plate one (401) and the push plate two (402).

3. The grinding machine positioning fixture according to claim 2, characterized in that: The linkage part 1 (403) includes a guide groove 1 (4031) opened on the base (1), a guide block 1 (4032) that slides with the guide groove 1 (4031), and a rotating shaft 2 (4033) that is rotatably connected to the end of the push plate 1 (401). The guide block 1 (4032) connects the rotating shaft 1 (302) and the rotating shaft 2 (4033).

4. The grinding machine positioning fixture according to claim 2, characterized in that: The linkage part 2 (404) includes a guide groove 2 (4041) opened on the base (1), a guide block 2 (4042) that slides with the guide groove 2 (4041), a rotating shaft 3 (4043) that is rotatably connected to the end of the push plate 2 (402), and a rotating shaft 4 (4044) that is rotatably connected to the middle of the push plate 1 (401). The guide block 2 (4042) connects the rotating shaft 3 (4043) and the rotating shaft 4 (4044).

5. The grinding machine positioning fixture according to claim 2, characterized in that: The power assembly (5) includes a guide groove three (501) opened on the base (1), a guide block three (502) that slides with the guide groove three (501), a rotating shaft five (503) connecting the guide block three (502) and the middle of the push plate two (402), a transverse block (506) connected to the guide block three (502) via a rotating shaft six (504), and an adjustment part (505) for pushing the transverse block (506) to move along the guide groove three (501).

6. The grinding machine positioning fixture according to claim 5, characterized in that: The adjustment unit (505) includes a fixed seat (5051) provided on the base (1), a screw (5052) screwed to the fixed seat (5051), a through groove (5053) opened on the transverse block (506), a rotating rod (5054) provided at one end of the screw (5052) and extending into the through groove (5053), and two limiting plates (5055) provided on the rotating rod (5054).

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