High-precision mechanical part machining and positioning device

Abstract

The utility model relates to the technical field of high-precision mechanical part machining, and particularly discloses a high-precision mechanical part machining positioning device which comprises a device fixing bottom plate, a guide base is fixedly arranged at the top of the device fixing bottom plate, and a positioning assembly is arranged above the guide base. A stabilizing assembly is mounted in the positioning assembly; the positioning assembly comprises clamping plates which are arranged at the top of the guide base and slide relatively; the stabilizing assembly comprises a transmission rack arranged in the clamping plate, a transmission gear is installed on one side of the transmission rack, a limiting sliding block is arranged on the other side of the transmission rack, an objective table sliding on the end face of the clamping plate is installed on the other side of the limiting sliding block, and a transmission shaft is fixedly arranged in the transmission gear in a penetrating mode. One end of the transmission shaft is fixedly connected with a driving bevel gear. According to the utility model, the workpiece can be stably clamped by a smaller contact surface, and the processing operation of processing equipment on the workpiece cannot be influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-precision mechanical parts processing, in particular to a high-precision mechanical parts processing positioning device. Background Art

[0002] High-precision mechanical parts processing is a process of high-precision and high-quality processing of parts, such as cutting, grinding and polishing. In order to ensure position accuracy and posture accuracy, positioning devices are used in the process of high-precision mechanical parts processing to limit the workpiece to a fixed position, thereby ensuring processing accuracy, improving processing quality and work efficiency.

[0003] It is particularly important for the positioning device of high-precision mechanical parts processing to adjust and position according to workpieces of different sizes and shapes, otherwise the positioning device will be difficult to meet the positioning of workpieces of different sizes and shapes;

[0004] For example, the existing public technical solution, announcement number CN217291426U discloses a high-precision mechanical parts processing and positioning device. Through the cooperation of the sliding plate, pressure plate, sponge body, guide plate, first axis, second axis, and rotating plate, mechanical parts of different sizes can be quickly processed and positioned with one click, which can facilitate the staff to perform one-click automatic positioning operations, thereby improving convenience.

[0005] When the above technical solution is actually implemented, the pressure plate and the sponge are responsible for clamping the workpiece, but the pressure plate is not convenient to disassemble and replace. When clamping a small-sized workpiece, if the workpiece size is smaller than the sponge size, the contact area between the sponge and the workpiece is larger during clamping, affecting the precision processing of the workpiece. Summary of the invention

[0006] The purpose of the utility model is to provide a high-precision mechanical parts processing positioning device, which can stably clamp the workpiece with a smaller contact surface and will not affect the processing operation of the processing equipment on the workpiece, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision mechanical parts processing positioning device, comprising a device fixed bottom plate, a guide base is fixedly arranged on the top of the device fixed bottom plate, and a positioning component is arranged above the guide base, and a stabilizing component is installed inside the positioning component;

[0008] The positioning assembly includes a clamping plate arranged on the top of the guide base and sliding relatively;

[0009] The stabilizing component includes a transmission rack arranged inside the splint, and a transmission gear is installed on one side of the transmission rack, a limiting slider is arranged on the other side of the transmission rack, and a loading platform sliding on the end face of the splint is installed on the other side of the limiting slider, a transmission shaft is fixedly passed through the interior of the transmission gear, and an active bevel gear is fixedly connected to one end of the transmission shaft, a driven bevel gear is arranged on one side of the active bevel gear, and an adjusting screw is fixedly passed through the interior of the driven bevel gear, a support rod is installed above the adjusting screw rod through a screw rod connector, and a movable cross rod is fixed on the top of the support rod, and an auxiliary clamping rod passing through the end face of the splint is arranged on one side of the movable cross rod.

[0010] Preferably, the stabilizing component further comprises a return spring fixed below the limit sliding block, and a telescopic rod is passed through the interior of the return spring.

[0011] Preferably, the positioning assembly further comprises a sliding plate fixed on one side of the clamping plate, and a limiting sliding groove is provided on the end surface of the clamping plate, and the limiting sliding block slides up and down in the limiting sliding groove.

[0012] Preferably, both ends of the telescopic rod are connected to the limiting slide block and the limiting slide groove respectively, and the limiting slide block is elastically connected to the limiting slide groove via a return spring and the telescopic rod.

[0013] Preferably, the positioning assembly also includes a screw sleeve installed under the sliding plate, a bidirectional screw is arranged inside the screw sleeve, the front and rear ends of the bidirectional screw are respectively connected to screw fixings through bearings, and a rotating handle is arranged at the front end of the bidirectional screw.

[0014] Preferably, the transmission gear and the transmission rack are meshed with each other, and the active bevel gear and the driven bevel gear are meshed with each other.

[0015] Preferably, the movable cross bar and the support bar form a T-shaped structure, and the auxiliary clamping rod and the clamping plate are perpendicular to each other.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The stabilizing component can use the weight of the workpiece to press the stage downward, thereby pushing the auxiliary clamping rod inward to the workpiece, stably clamping the workpiece, improving the stability of the workpiece during positioning, and even if the bidirectional lead screw fails, the workpiece can be clamped by its own weight. The auxiliary clamping rod has a small diameter, and the contact area between the auxiliary clamping rod and the workpiece is limited when clamping a small-sized workpiece, which will not hinder the processing of the workpiece by the processing equipment;

[0018] 2. The positioning component can drive the clamping plate to move inward under the action of the bidirectional screw, and cooperate with the stabilizing component to stably clamp the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the overall structural view of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the stabilizing component of the utility model;

[0022] Figure 3 For the utility model Figure 1 A magnified view of middle;

[0023] Figure 4 It is a structural schematic diagram of the limit sliding block of the utility model.

[0024] Description of reference numerals:

[0025] 1. Fixing base plate; 2. Guide base; 3. Stabilizing assembly; 301. Loading platform; 302. Limiting slider; 303. Reset spring; 304. Transmission shaft; 305. Transmission gear; 306. Transmission rack; 307. Active bevel gear; 308. Adjusting screw; 309. Support rod; 310. Movable cross bar; 311. Auxiliary clamping rod; 312. Driven bevel gear; 313. Telescopic rod; 4. Positioning assembly; 401. Bidirectional screw; 402. Clamping plate; 403. Sliding plate; 404. Screw fixing piece; 405. Limiting slide groove; 406. Screw sleeve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides a technical solution:

[0028] See also Figures 1 to 3 A high-precision mechanical parts processing positioning device comprises a device fixing base plate 1, a guide base 2 is fixedly arranged on the top of the device fixing base plate 1, a positioning component 4 is arranged above the guide base 2, and a stabilizing component 3 is installed inside the positioning component 4;

[0029] The positioning assembly 4 includes a clamping plate 402 arranged on the top of the guide base 2 and sliding relatively;

[0030] The stabilizing component 3 includes a transmission rack 306 arranged inside the clamping plate 402, and a transmission gear 305 is installed on one side of the transmission rack 306, a limit slider 302 is arranged on the other side of the transmission rack 306, and a loading platform 301 sliding on the end surface of the clamping plate 402 is installed on the other side of the limit slider 302, a transmission shaft 304 is fixedly penetrated inside the transmission gear 305, and one end of the transmission shaft 304 is fixedly connected to an active bevel gear 307, a driven bevel gear 312 is arranged on one side of the active bevel gear 307, and the driven bevel gear 312 is fixed on the other side of the driven bevel gear 312. 2 is fixedly penetrated with an adjusting screw rod 308, a support rod 309 is installed above the adjusting screw rod 308 through a screw rod connector, and a movable cross bar 310 is fixed on the top of the support rod 309, an auxiliary clamping rod 311 penetrating the end surface of the clamping plate 402 is arranged on one side of the movable cross bar 310, the transmission gear 305 and the transmission rack 306 are meshed with each other, the active bevel gear 307 and the driven bevel gear 312 are meshed with each other, the movable cross bar 310 and the support rod 309 form a T-shaped structure, and the auxiliary clamping rod 311 and the clamping plate 402 are perpendicular to each other.

[0031] By adopting the above technical solution, the position of the clamping plate 402 is adjusted according to the size of the workpiece, and the workpiece is placed on the stage 301. When the stage 301 is acted upon by gravity, the limit slider 302 can be driven to slide downward, thereby driving the transmission rack 306 to move downward. The transmission rack 306 can drive the transmission gear 305 to rotate when moving, and the transmission gear 305 drives the active bevel gear 307 to rotate through the transmission shaft 304, so that the active bevel gear 307 drives the driven bevel gear 312 to rotate, and the adjusting screw 308 on the driven bevel gear 312 rotates, which can drive the support rod 309 on the adjusting screw 308 to move forward, and drive the auxiliary clamping rod 311 to move forward through the movable cross bar 310, close to the workpiece, until it abuts against the workpiece, thereby achieving stable positioning of the workpiece.

[0032] Specifically, Figure 1 , Figure 3 and Figure 4As shown, the stabilizing component 3 also includes a return spring 303 fixed under the limit slider 302, and a telescopic rod 313 is inserted into the interior of the return spring 303. The positioning component 4 also includes a sliding plate 403 fixed on one side of the splint 402, and a limit slot 405 is provided on the end surface of the splint 402, and the limit slider 302 slides up and down in the limit slot 405, and the two ends of the telescopic rod 313 are respectively connected to the limit slider 302 and the limit slot 405, and the limit slider 302 is elastically connected to the limit slot 405 through the return spring 303 and the telescopic rod 313. The positioning component 4 also includes a screw sleeve 406 installed under the sliding plate 403, and a bidirectional screw 401 is arranged inside the screw sleeve 406, and the front and rear ends of the bidirectional screw 401 are respectively connected to the screw fixing parts 404 through bearings, and a rotating handle is arranged at the front end of the bidirectional screw 401.

[0033] By adopting the above technical solution, the rotating handle can drive the bidirectional screw 401 to rotate through the spline. At this time, the screw sleeve 406 on the bidirectional screw 401 can drive the sliding plate 403 to slide in opposite directions, so that the distance between the two sets of clamps 402 can be adjusted. When the worktable 301 moves downward, it can drive the limit slider 302 to move downward and squeeze the reset spring 303 and the telescopic rod 313. After the workpiece is separated from the worktable 301, the elastic force of the reset spring 303 can push the worktable 301 to move upward and reset.

[0034] Working principle: Turning the handle can drive the bidirectional screw 401 to rotate through the spline, drive the sliding plate 403 to slide towards each other, adjust the distance between the two sets of clamping plates 402, place the workpiece on the stage 301, and slide downward through the limit slider 302 under the action of the gravity of the workpiece, drive the transmission rack 306 to move downward, and the transmission rack 306 can drive the transmission gear 305 to rotate when moving, and the transmission gear 305 drives the active bevel gear 307 to rotate through the transmission shaft 304, so that the active bevel gear 307 drives the driven bevel gear 312 to rotate, and the adjusting screw 308 on the driven bevel gear 312 rotates, which can drive the support rod 309 on the adjusting screw 308 to move forward, and drive the auxiliary clamping rod 311 to move forward through the movable cross bar 310, close to the workpiece, until it abuts against the workpiece, to achieve stable positioning of the workpiece.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A high-precision mechanical parts processing and positioning device, comprising a device fixing base plate (1), characterized in that: A guide base (2) is fixedly arranged on the top of the fixed base plate (1) of the device, and a positioning component (4) is arranged above the guide base (2), and a stabilizing component (3) is installed inside the positioning component (4); The positioning assembly (4) comprises a clamping plate (402) arranged on the top of the guide base (2) and relatively slidable; The stabilizing component (3) comprises a transmission rack (306) arranged inside the clamping plate (402), and a transmission gear (305) is installed on one side of the transmission rack (306), a limiting slider (302) is arranged on the other side of the transmission rack (306), and a loading platform (301) sliding on the end surface of the clamping plate (402) is installed on the other side of the limiting slider (302), a transmission shaft (304) is fixedly penetrated inside the transmission gear (305), and one end of the transmission shaft (304) is fixedly connected to the loading platform (301) on the other side of the limiting slider (302). A driving bevel gear (307) is connected to the driving bevel gear (307), a driven bevel gear (312) is arranged on one side of the driving bevel gear (307), and an adjusting screw rod (308) is fixedly penetrated inside the driven bevel gear (312), a support rod (309) is installed above the adjusting screw rod (308) through a screw rod connector, and a movable cross rod (310) is fixed on the top of the support rod (309), and an auxiliary clamping rod (311) penetrating the end surface of the clamping plate (402) is arranged on one side of the movable cross rod (310).

2. A high-precision mechanical parts processing and positioning device according to claim 1, characterized in that: The stabilizing component (3) further comprises a return spring (303) fixed below the limiting slider (302), and a telescopic rod (313) is inserted into the return spring (303).

3. A high-precision mechanical parts processing and positioning device according to claim 2, characterized in that: The positioning assembly (4) further comprises a sliding plate (403) fixed on one side of the clamping plate (402), and a limiting sliding groove (405) is provided on the end surface of the clamping plate (402), and the limiting sliding block (302) slides up and down in the limiting sliding groove (405).

4. A high-precision mechanical parts processing and positioning device according to claim 3, characterized in that: The two ends of the telescopic rod (313) are respectively connected to the limiting slide block (302) and the limiting slide groove (405), and the limiting slide block (302) is elastically connected to the limiting slide groove (405) via a return spring (303) and the telescopic rod (313).

5. The high-precision mechanical parts processing and positioning device according to claim 1, characterized in that: The positioning assembly (4) further comprises a screw sleeve (406) installed below the sliding plate (403), a bidirectional screw (401) being arranged inside the screw sleeve (406), front and rear ends of the bidirectional screw (401) being connected to screw fixing members (404) via bearings respectively, and a rotating handle being arranged at the front end of the bidirectional screw (401).

6. A high-precision mechanical parts processing and positioning device according to claim 1, characterized in that: The transmission gear (305) and the transmission rack (306) are meshed with each other, and the active bevel gear (307) and the driven bevel gear (312) are meshed with each other.

7. A high-precision mechanical parts processing and positioning device according to claim 1, characterized in that: The movable cross bar (310) and the support bar (309) form a T-shaped structure, and the auxiliary clamping rod (311) and the clamping plate (402) are perpendicular to each other.

Images