Precise workpiece machining limiting device

Abstract

The utility model belongs to the technical field of precision workpiece machining, and particularly relates to a precision workpiece machining limiting device which comprises a base, two translation mechanisms are arranged on the base, the two translation mechanisms are respectively provided with a linkage mechanism, and two sliding rail columns used for supporting the two translation mechanisms to slide are arranged on the base. The base is provided with a positive and negative tooth lead screw used for driving the two translation mechanisms to move synchronously, and the base is provided with placing tables corresponding to the two linkage mechanisms. A horizontal push rod drives a rotating plate and a reverse pushing mechanism to slide a convex sliding plate along a convex groove in a supporting block, so that a jacking plate is driven to jack and limit a workpiece on a placement table, and meanwhile, a push-pull adjusting brake plate is clamped with a corresponding clamping groove in a clamping groove plate; in this way, the reverse pushing mechanism can limit the sliding position of the convex sliding plate through pushing of the brake plate and the spring, so that the jacking and limiting state of the jacking plate is kept, and the jacking and limiting effect on the workpiece is improved.

Description

Technical Field

[0001] This utility model belongs to the field of precision workpiece processing technology, and specifically relates to a precision workpiece processing limiting device. Background Technology

[0002] Precision workpieces refer to workpieces with small tolerances in size, shape, and position, and high surface quality requirements, typically achieving a precision level of micrometers or higher. Precision workpieces are widely used in fields such as machinery, electronics, optics, aerospace, and medicine, including precision transmission components, precision instruments, and precision machining equipment. During machining, precision workpieces require limiting and fixing to prevent movement that could affect the precision machining results.

[0003] The prior art patent authorization number CN 216228068 U describes a precision workpiece stabilizing and limiting clamping device. This application relates to a precision workpiece stabilizing and limiting clamping device, which includes a base. A placement block is fixedly connected to the top of the base. A placement cavity is opened on the top of the placement block. A pair of clamping components are provided on the top of the base. The clamping components include a connecting block. A guide groove is opened on the top of the connecting block. A pushing block is slidably connected to the inner side wall of the guide groove. A rotating shaft is rotatably connected to the inner side wall of the guide groove relative to the position of the pushing block. An arc-shaped pushing block is fixedly connected to the middle of the rotating shaft. The arc-shaped pushing block contacts the pushing block to achieve the effect of quickly clamping and limiting the workpiece.

[0004] Problems with existing technology:

[0005] When the above-mentioned device is used, it mainly moves the pressing block by twisting the arc-shaped pusher. After the arc-shaped pusher rotates and tightens the pressing block, during the processing, the vibration drives the pressing block to transmit power to the arc-shaped pusher. This can easily cause the arc-shaped pusher to rotate due to the vibration and lose its tightening effect on the pressing block, thus affecting the limiting effect. Utility Model Content

[0006] The purpose of this invention is to provide a precision workpiece machining limiting device that can solve the above-mentioned technical problems.

[0007] The specific technical solution adopted by this utility model is as follows:

[0008] This utility model provides a precision workpiece machining limiting device, including a base, two translation mechanisms on the base, each of the two translation mechanisms having a linkage mechanism, two slide rail columns on the base for supporting the sliding of the two translation mechanisms, a positive and negative threaded screw on the base for driving the two translation mechanisms to move synchronously, the positive and negative threaded screws being connected to the output shaft of a drive motor on the base, and a placement platform on the base corresponding to the two linkage mechanisms;

[0009] The translation mechanism includes a translation block that is threaded to one side of the positive and negative lead screws. Both slide rail columns are slidably sleeved in the translation plate. A support block is fixed on the translation block. A convex slide plate is slidably provided on the upper surface of the support block through a formed convex groove. A top clamping plate is horizontally corresponding to the placement platform and fixedly connected to the convex slide plate. A slot plate is provided on the translation block.

[0010] The linkage mechanism includes two rotating plates. The two rotating plates are provided with a reverse thrust mechanism connected to the convex sliding plate. The two rotating plates are respectively provided with telescopic rods through the forming groove on their opposite sides. A brake plate is fixed at the free end between the two telescopic rods and meshes with the groove on the slot plate. The brake plate is set in a conical shape.

[0011] The aforementioned precision workpiece machining limiting device utilizes a horizontal push rod. By applying downward force, the telescopic rod and rotating plate rotate downwards along the rotating axis. Simultaneously, the vertical plate pushes the reverse push plate, which in turn drives the push shaft to slide along the convex groove on the support block. This causes the convex slide to move along the convex groove on the support block, thereby tightening and limiting the workpiece on the placement table. Simultaneously, as the horizontal push rod rotates downwards, it causes the telescopic rod to retract and slide within the groove on the rotating plate. This causes the telescopic rod to rotate the brake plate downwards to align with the slot plate. The telescopic rod's movement within the groove compresses the spring, and the brake plate is then pulled out and locked into the corresponding slot on the slot plate. The spring's elasticity maintains the brake plate in a engaged state with the slot on the slot plate. This engagement restricts the rotation of the rotating plate and limits the sliding of the convex slide, thereby improving the tightening and limiting effect of the top plate.

[0012] Preferably, the reverse thrust mechanism includes a push shaft rotatably mounted on a convex sliding plate, the push shaft being located on the side of the convex sliding plate closer to the top plate, a rotating shaft rotatably mounted on the support block, one side of each of the two rotating plates being fixedly connected to both ends of the rotating shaft, and a horizontal push rod being fixed between the two telescopic rods.

[0013] Preferably, the two rotating plates are provided with a counter-pushing plate on opposite sides, and a vertical plate is fixedly provided on the bottom surface of the rotating plate away from the rotating axis. The lower side of the vertical plate is fixedly connected to a fixed shaft, the fixed shaft is rotatably engaged with the lower side of the counter-pushing plate, and the end of the pushing shaft is rotatably engaged with the upper side of the counter-pushing plate.

[0014] Preferably, the side of the translation block is detachably provided with an installation plate, and the side of the installation plate is fixedly provided with a fixing plate. The fixing plate is fixedly connected to the slot plate, and the multiple slots on the slot plate are distributed at intervals of 1.5° with the rotation axis as the center.

[0015] Preferably, a spring is fixedly installed in the groove formed by the two rotating plates, and the spring is fixedly connected to the side of the telescopic rod located in the groove.

[0016] Preferably, a limiting plate is detachably provided on the opposite side of the two rotating plates away from the rotating shaft, and the limiting plate is in a jamming state with the protrusion fixed on the telescopic rod.

[0017] The beneficial effects are:

[0018] 1. This utility model uses a horizontal push rod to drive the rotating plate and vertical plate to rotate by the rotating shaft. At the same time, it drives the reverse push mechanism to slide the convex slide along the convex groove on the support block, thereby driving the top clamping plate to clamp and limit the workpiece on the placement table. Simultaneously, the push-pull adjustment brake plate engages with the corresponding groove on the slot plate, and the spring maintains the engagement state between the brake plate and the slot plate. In this way, the position of the convex slide after the reverse push mechanism pushes it can be limited, thereby maintaining the clamping and limiting state of the top clamping plate and improving the clamping and limiting effect on the workpiece.

[0019] 2. This utility model uses the arm to exert downward force to press down the horizontal press bar, which drives the reverse thrust mechanism to push and slide the convex slide plate, improving the ease of operation when the device is used to tighten and limit the workpiece. Attached Figure Description

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

[0021] Figure 2 This is a schematic diagram of the translation mechanism in this utility model;

[0022] Figure 3 This is a schematic diagram of the linkage mechanism in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base; 2. Translation mechanism; 201. Translation block; 202. Support block; 203. Mounting plate; 204. Fixing plate; 205. Slot plate; 206. Convex sliding plate; 207. Tightening plate; 3. Linkage mechanism; 301. Push shaft; 302. Reverse push plate; 303. Rotating shaft; 304. Rotating plate; 305. Vertical plate; 306. Fixing shaft; 307. Telescopic rod; 308. Brake plate; 309. Horizontal press rod; 310. Limiting plate; 311. Protrusion; 312. Spring; 4. Positive and negative threaded screws; 5. Slide rail column; 6. Placement platform; 7. Drive motor. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] like Figure 1-3 As shown, a precision workpiece machining limiting device includes a base 1, two translation mechanisms 2 are provided on the base 1, and each of the two translation mechanisms 2 is provided with a linkage mechanism 3. Two slide rail columns 5 are provided on the base 1 to support the sliding of the two translation mechanisms 2. A positive and negative threaded screw 4 is provided on the base 1 to drive the two translation mechanisms 2 to move synchronously. The positive and negative threaded screw 4 is connected to the output shaft of a drive motor 7 provided on the base 1. A placement platform 6 corresponding to the two linkage mechanisms 3 is provided on the base 1.

[0027] The translation mechanism 2 includes a translation block 201 that is threaded to one side of the positive and negative threaded screws 4. Two slide rail columns 5 are slidably sleeved in the translation plate. A support block 202 is fixed on the translation block 201. A convex slide plate 206 is slidably provided on the upper surface of the support block 202 through a formed convex groove. A top clamping plate 207 is horizontally corresponding to the placement table 6 and fixedly connected to the convex slide plate 206. A slot plate 205 is provided on the translation block 201.

[0028] The linkage mechanism 3 includes two rotating plates 304. The two rotating plates 304 are provided with a reverse thrust mechanism connected to the convex sliding plate 206. The two rotating plates 304 are respectively slidably provided with telescopic rods 307 through the forming groove on their opposite sides. The free end between the two telescopic rods 307 is fixed with a brake plate 308 that meshes with the groove on the slot plate 205. The brake plate 308 is set in a conical shape.

[0029] As an optional implementation, the reverse thrust mechanism includes a push shaft 301 rotatably mounted on the convex slide plate 206. The push shaft 301 is located on the side of the convex slide plate 206 near the top clamping plate 207. A rotating shaft 303 is rotatably mounted on the support block 202. One side of each of the two rotating plates 304 is fixedly connected to both ends of the rotating shaft 303. A horizontal push rod 309 is fixed between the two telescopic rods 307. In this way, it is convenient to hold the horizontal push rod 309 to exert force to rotate the telescopic rods 307 and the rotating plates 304 downwards, thereby improving the convenience of the clamping operation.

[0030] See attached document Figure 2 and attached Figure 3Two rotating plates 304 are respectively provided with a push plate 302 on opposite sides. A vertical plate 305 is fixed on the bottom surface of the rotating plate 304 away from the rotating shaft 303. The lower side of the vertical plate 305 is fixedly connected to the fixed shaft 306. The fixed shaft 306 is rotatably engaged with the lower side of the push plate 302. The end of the push shaft 301 is rotatably engaged with the upper side of the push plate 302. The push plate 302 can use the rotation of the rotating plate 304 to drive the vertical plate 305 to rotate and generate a thrust on the push plate 302, thereby driving the convex slide plate 206 to slide along the convex groove.

[0031] Furthermore, a mounting plate 203 is detachably provided on the side of the translation block 201, and a fixing plate 204 is fixedly provided on the side of the mounting plate 203. The fixing plate 204 is fixedly connected to the slot plate 205. Multiple slots on the slot plate 205 are distributed at intervals of 1.5° with the rotation shaft 303 as the center, so that multiple slots can respond to the brake plate 308 after rotation adjustment, thereby improving the multi-point braking effect on the reverse thrust mechanism.

[0032] Furthermore, a spring 312 is fixedly installed in the groove formed by the two rotating plates 304. The spring 312 is fixedly connected to the side of the telescopic rod 307 located in the groove. By utilizing the elasticity of the spring 312, the telescopic rod 307 can be pushed to always keep it in an extended state, thereby improving the braking effect of the brake plate 308 and the slot on the slot plate 205.

[0033] Furthermore, a limiting plate 310 is detachably provided on the opposite side of the two rotating plates 304 away from the rotating shaft 303. The limiting plate 310 is in a locking state with the protrusion 311 fixed on the telescopic rod 307. The protrusion 311 and the limiting plate 310 are aligned in a straight line along the side of the rotating plate 304. The limiting plate 310 can be used to lock the protrusion 311 on the telescopic rod 307, thereby preventing the telescopic rod 307 from disengaging from the groove on the rotating plate 304 when it extends or retracts.

[0034] Using the above structure, by gripping the horizontal press bar 309 and applying downward force, the telescopic rod 307 and the rotating plate 304 are driven to rotate downward by the rotating shaft 303. At the same time, the vertical plate 305 pushes the reverse push plate 302. The reverse push plate 302 drives the push shaft 301 to slide along the convex groove on the support block 202, so that the convex slide plate 206 drives the clamping plate 207 to clamp and limit the workpiece on the placement table 6. At the same time, when the horizontal press bar 309 rotates downward, it causes the telescopic rod 307 to retract and slide within the groove on the rotating plate 304, so that the telescopic rod 307... The moving brake plate 308 rotates downward to correspond with the slot plate 205. At the same time, the telescopic rod 307 slides in the groove to compress the spring 312. Then, the brake plate 308 is pulled and moved to be locked in the slot on the corresponding slot plate 205. Thus, the elasticity of the spring 312 always pushes the brake plate 308 and the slot on the slot plate 205 to be in a meshing and locking state. In this way, the engagement between the brake plate 308 and the slot on the slot plate 205 can restrict the rotation of the rotating plate 304 and form a limiting effect on the sliding of the convex slide plate 206, thereby improving the tightening and limiting effect of the top plate 207.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A precision workpiece machining limiting device, characterized in that: Includes a base (1), on which two translation mechanisms (2) are provided, and each of the two translation mechanisms (2) is provided with a linkage mechanism (3). The base (1) is provided with two slide rail columns (5) for supporting the sliding of the two translation mechanisms (2). The base (1) is provided with a positive and negative threaded screw (4) for driving the two translation mechanisms (2) to move synchronously. The positive and negative threaded screw (4) is connected to the output shaft of a drive motor (7) provided on the base (1). The base (1) is provided with a placement platform (6) corresponding to the two linkage mechanisms (3). The translation mechanism (2) includes a translation block (201) that is threaded to one side of the positive and negative thread screws (4). Both of the slide rail columns (5) are slidably sleeved in the translation plate. A support block (202) is fixedly provided on the translation block (201). A convex slide plate (206) is slidably provided on the upper surface of the support block (202) through a shaped convex groove. A top clamping plate (207) is horizontally corresponding to the placement platform (6) and is fixedly connected to the convex slide plate (206). A slot plate (205) is provided on the translation block (201). The linkage mechanism (3) includes two rotating plates (304). The two rotating plates (304) are provided with a reverse thrust mechanism connected to the convex sliding plate (206). The two rotating plates (304) are respectively provided with telescopic rods (307) through the forming groove on their opposite sides. A brake plate (308) that meshes with the groove on the slot plate (205) is fixed at the free end between the two telescopic rods (307). The brake plate (308) is set in a conical shape.

2. The precision workpiece machining limiting device according to claim 1, characterized in that: The reverse thrust mechanism includes a push shaft (301) rotatably mounted on a convex slide plate (206), the push shaft (301) being located on the side of the convex slide plate (206) near the top plate (207), a rotating shaft (303) rotatably mounted on the support block (202), one side of each of the two rotating plates (304) being fixedly connected to both ends of the rotating shaft (303), and a horizontal push rod (309) being fixed between the two telescopic rods (307).

3. The precision workpiece machining limiting device according to claim 2, characterized in that: The two rotating plates (304) are respectively provided with a push plate (302) on opposite sides. A vertical plate (305) is fixed on the bottom surface of the rotating plate (304) away from the rotating shaft (303). The lower side of the vertical plate (305) is fixedly connected to the fixed shaft (306). The fixed shaft (306) is rotatably engaged with the lower side of the push plate (302). The end of the push shaft (301) is rotatably engaged with the upper side of the push plate (302).

4. The precision workpiece machining limiting device according to claim 1, characterized in that: The side of the translation block (201) is detachably provided with an installation plate (203), and the side of the installation plate (203) is fixedly provided with a fixing plate (204). The fixing plate (204) is fixedly connected to the slot plate (205), and the multiple slots on the slot plate (205) are distributed at intervals of 1.5° with the rotation axis (303) as the center.

5. The precision workpiece machining limiting device according to claim 3, characterized in that: A spring (312) is fixedly installed in the groove formed by the two rotating plates (304), and the spring (312) is fixedly connected to the side of the telescopic rod (307) located in the groove.

6. The precision workpiece machining limiting device according to claim 5, characterized in that: A limiting plate (310) is detachably provided on the opposite side of the two rotating plates (304) away from the rotating shaft (303). The limiting plate (310) is in a locked state with the protrusion (311) fixed on the telescopic rod (307).

Images