Precise positioning clamp for precision part machining

Abstract

The utility model relates to the technical field of precision part machining, and discloses a precision positioning clamp for precision part machining, which comprises a connecting seat, a clamping and fixing mechanism arranged in the connecting seat, a shifting mechanism arranged in the connecting seat, a connecting frame arranged on the top of the shifting mechanism, and a positioning mechanism arranged on the connecting frame, through the arranged clamping and fixing mechanism, a handle is manually rotated, the second clamping plates on the two sides make contact with the longest edge of a machined part firstly, and then the first clamping plates on the front side and the rear side are continuously driven to move relatively till the first clamping plates on the front side and the rear side make contact with the machined part; meanwhile, a pull rod is pressed downwards, a pressing column abuts against a second clamping plate, then the second clamping plate is fixed, clamping and fixing of the fixed machined part are further improved, the precise part is prevented from moving relatively in the follow-up machining process, and the machining efficiency is improved. And the subsequent processing effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of precision part processing, specifically to a precision positioning fixture for precision part processing. BACKGROUND

[0002] The precision positioning fixture for precision part processing can ensure that the parts remain stable during processing, prevent movement or shaking, thereby ensuring the stability of processing precision, enabling high-precision positioning of the parts, which is crucial for high-precision processing.

[0003] According to the precision positioning fixture for precision part processing disclosed in the patent network (authorized announcement CN220330055 U), it is described as "a precision positioning fixture for precision part processing, comprising a bottom box device, a support plate is arranged inside the bottom box device, a damping block is arranged at the joint of the bottom box device and the support plate, an adjusting assembly is arranged inside the support plate, a locking assembly is arranged above the adjusting assembly, and the locking assembly is located above the support plate, a support frame is arranged on one side of the top of the support plate, and a drill sleeve is arranged above the support frame."

[0004] According to the above description, the applicant believes that there are the following problems:

[0005] During use, the locking assembly can be moved and adjusted by rotating the handle, making it easy to adjust the distance between the locking assemblies according to the size of the precision parts. Then, by pulling the pull rod, the pressing plate is moved upward, and the limit rod is then limited to the pull rod. The precision parts are placed on the support plate, and then the limit rod is pulled outward. The pressing plate can press and fix the precision parts. However, in actual use, the device only uses the spring at the top to drive the pressing plate downward to press and fix the precision parts. It is difficult to completely fix the precision parts during the fixing process, which may cause relative movement of the precision parts during subsequent processing, thereby affecting the subsequent processing effect. Therefore, it is necessary to improve the precision positioning fixture for precision part processing. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a precision positioning fixture for precision part processing to solve the problems raised in the background.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a precision positioning fixture for precision part processing, comprising a connecting seat, a clamping and fixing mechanism is arranged inside the connecting seat, a displacement mechanism is arranged inside the connecting seat, a connecting frame is arranged at the top of the displacement mechanism, and a drill sleeve is fixedly connected to the top of the connecting frame.

[0008] The clamping fixing mechanism comprises a clamping assembly and a fixing assembly, and the fixing assembly is arranged at the bottom of the clamping assembly;

[0009] The clamping assembly comprises a handle, the handle is rotationally connected in the inside of the connecting seat, the outside of the handle is fixedly connected with a first bevel gear, the outside of the first bevel gear is engaged with a second bevel gear, the top of the second bevel gear is fixedly connected with a screw rod one, the outside of the screw rod one is threadedly connected with a lifting frame, the top of the lifting frame is rotationally connected with a connecting rod, the end, away from the lifting frame, of the connecting rod is rotationally connected with a sliding frame, the top of the sliding frame is fixedly connected with a sliding sleeve, the top of the sliding frame is fixedly connected with a clamping plate one, and the inside of the connecting seat is fixedly connected with a supporting plate, so that the workpiece can be quickly fixed and positioned.

[0010] Preferably, the second bevel gear is rotationally connected in the inside of the connecting seat, and the screw rod one is rotationally connected at the bottom of the supporting plate, so that the lifting frame can be driven to move up and down.

[0011] Preferably, a groove is formed at the corresponding position of the sliding frame and the supporting plate, and the sliding frame is slidingly connected in the groove, so that the movement of the sliding frame is limited.

[0012] Preferably, the fixing assembly comprises a connecting sleeve, the connecting sleeve is fixedly connected at the bottom of the sliding frame, the inside of the connecting sleeve is slidingly connected with a pressing column, the front and back sides of the pressing column are rotationally connected with a push rod, the end, away from the pressing column, of the push rod is rotationally connected with a pressing rod, the top of the push rod is fixedly connected with a pull rod, the inside of the sliding sleeve is slidingly connected with a clamping plate two, and the clamping plate two and the sliding sleeve are fixedly connected with a spring, so that a secondary fixing effect is achieved after positioning and fixing.

[0013] Preferably, the pressing rod is rotationally connected at the front and back sides of the connecting sleeve, and a through groove is formed at the corresponding position of the pressing column and the connecting sleeve, and the pressing column is slidingly connected in the through groove, so that the pressing column and the clamping plate two are in abutment.

[0014] Preferably, the shifting mechanism comprises a handle ring, the handle ring is rotationally connected at the left side of the connecting seat, the right side of the handle ring is rotationally connected with a screw rod two, the outside of the screw rod two is threadedly connected with a threaded block, and the inside of the connecting seat is fixedly connected with a sliding column, so that the drilling distance can be adjusted leftward and rightward according to the drilling requirement.

[0015] Preferably, the screw rod two is rotationally connected in the inside of the connecting seat, the threaded block is slidingly connected at the outside of the sliding column, and the connecting frame is fixedly connected at the top of the threaded block, so that the threaded block can be driven to move leftward and rightward.

[0016] Compared with the prior art, the precise positioning clamp for precise part machining has the following beneficial effects:

[0017] 1. This precision positioning fixture for machining precision parts, through a clamping and fixing mechanism, allows for manual rotation of the handle. The two side clamping plates first contact the longest side of the workpiece, continuously moving the front and rear side clamping plates until they contact the workpiece. This enables the device to quickly fix workpieces of different sizes. Simultaneously, pressing down the pull rod causes the pressure column to abut against the second clamping plate, further fixing it and enhancing the clamping and fixing of the workpiece after fixation. This prevents relative movement of the precision parts during subsequent machining, thereby improving the subsequent machining effect.

[0018] 2. The precision positioning fixture for machining precision parts has a displacement mechanism. By manually rotating the handle ring, the handle ring drives the screw to rotate. During the rotation of the screw, the threaded block slides under the guidance of the sliding column, thereby adjusting the left and right movement of the drill bushing. This allows the device to adjust the drilling distance left and right according to the drilling requirements. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0021] Figure 2 This is a schematic diagram of the external structure of the clamping and fixing mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the external structure of the clamping assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the external structure of the fixing component of this utility model;

[0024] Figure 5 This is a schematic diagram of the external structure of the displacement mechanism of this utility model.

[0025] In the diagram: 1. Connecting seat; 2. Clamping and fixing mechanism; 3. Shifting mechanism; 4. Connecting frame; 5. Drill sleeve; 21. Clamping assembly; 22. Fixing assembly; 211. Handle; 212. First bevel gear; 213. Second bevel gear; 214. Screw one; 215. Lifting frame; 216. Connecting rod; 217. Slide; 218. Slide sleeve; 219. Support plate; 2110. Clamping plate one; 221. Connecting sleeve; 222. Pressure column; 223. Pressure rod; 224. Push rod; 225. Pull rod; 226. Clamping plate two; 227. Spring; 31. Handle ring; 32. Screw two; 33. Threaded block; 34. Slide column. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0028] Please see Figures 1-5 This utility model provides a technical solution: a precision positioning fixture for machining precision parts, including a connecting seat 1, a clamping and fixing mechanism 2 is provided inside the connecting seat 1, a shifting mechanism 3 is provided inside the connecting seat 1, a connecting frame 4 is provided on the top of the shifting mechanism 3, and a drill sleeve 5 is fixedly connected to the top of the connecting frame 4.

[0029] The clamping and fixing mechanism 2 includes a clamping component 21 and a fixing component 22, with the fixing component 22 disposed at the bottom of the clamping component 21;

[0030] The clamping assembly 21 includes a handle 211, which is rotatably connected inside the connecting seat 1. A first bevel gear 212 is fixedly connected to the outside of the handle 211. A second bevel gear 213 meshes with the first bevel gear 212. A screw 214 is fixedly connected to the top of the second bevel gear 213. A lifting frame 215 is threadedly connected to the outside of the screw 214. A connecting rod 216 is rotatably connected to the top of the lifting frame 215. A slide 217 is rotatably connected to the end of the connecting rod 216 away from the lifting frame 215. A sliding sleeve 218 is fixedly connected to the top of the slide 217. A clamping plate 2110 is fixedly connected to the top of the slide 217. A support plate 219 is fixedly connected inside the connecting seat 1 to facilitate quick fixing and positioning of the workpiece.

[0031] Furthermore, the second bevel gear 213 is rotatably connected inside the connecting seat 1, and the screw 214 is rotatably connected to the bottom of the support plate 219, which facilitates the lifting frame 215 to move up and down.

[0032] Furthermore, a groove is provided at the corresponding position of the slide 217 and the support plate 219, and the slide 217 is slidably connected in the groove, which facilitates restricting the movement of the slide 217.

[0033] Furthermore, the fixing component 22 includes a connecting sleeve 221, which is fixedly connected to the bottom of the slide 217. A pressure column 222 is slidably connected inside the connecting sleeve 221. Push rods 224 are rotatably connected to the front and rear sides of the pressure column 222. A pressure rod 223 is rotatably connected to the end of the push rod 224 away from the pressure column 222. A pull rod 225 is fixedly connected to the top of the push rod 224. A clamping plate 226 is slidably connected inside the slide 218. A spring 227 is fixedly connected between the clamping plate 226 and the slide 218, which facilitates a secondary fixing effect after positioning and fixing.

[0034] Furthermore, the pressure rod 223 is rotatably connected to the front and rear sides of the connecting sleeve 221, and the pressure column 222 is provided with a through groove at the corresponding position of the connecting sleeve 221, and the pressure column 222 is slidably connected in the through groove, so that the pressure column 222 abuts against the clamping plate 226. Example

[0035] Please see Figure 5 Furthermore, in conjunction with Embodiment 1, it is further found that the shifting mechanism 3 includes a handle ring 31, which is rotatably connected to the left side of the connecting seat 1. A screw 32 is rotatably connected to the right side of the handle ring 31. A threaded block 33 is threadedly connected to the outside of the screw 32. A sliding column 34 is fixedly connected inside the connecting seat 1, which facilitates adjusting the appropriate drilling distance left and right according to the drilling requirements.

[0036] Furthermore, the screw 32 is rotatably connected inside the connecting seat 1, and the threaded block 33 is slidably connected to the outside of the slide column 34, and the connecting bracket 4 is fixedly connected to the top of the threaded block 33, which facilitates the left and right movement of the threaded block 33.

[0037] In actual operation, when the device is in use, firstly, the part to be processed is placed on the connecting seat 1, with the longer side positioned near the two clamping plates 226 on both sides. Then, through the clamping and fixing mechanism 2, the handle 211 is manually turned, which drives the first bevel gear 212 to rotate, and then the first bevel gear 212 drives the second bevel gear 213 to rotate. At the same time, the second bevel gear 213 drives the screw 214 to rotate, and during the rotation of the screw 214, the lifting frame 215 moves downward. Then, during the downward movement of the lifting frame 215, the synchronous belt drives the surrounding connecting rods 216 to move, so that the connecting rods 216 synchronously pull the slide 217 to move. During the movement of the slide 217, the two clamping plates 226 first contact the longest side of the workpiece. At this time, the lifting frame 215 continues to move downward, so that the two clamping plates 226 contact the longest side of the workpiece. 226 slides along the inner side of the sliding sleeve 218, thereby continuously driving the front and rear clamping plates 2110 to move relative to each other until the front and rear clamping plates 2110 contact the workpiece, so that the device can quickly complete the fixing of workpieces of different sizes. At the same time, the pull rod 225 is pressed down, and as the pull rod 225 moves downward, it pushes the pressure column 222 to move upward until the pressure rod 223 rotates to a vertical state and stops. At this time, the pressure column 222 abuts against the clamping plate 226, thereby completing the fixing of the clamping plate 226, thereby further improving the clamping and fixing of the workpiece after fixing. Then, through the set displacement mechanism 3, the handle ring 31 is manually rotated, and the handle ring 31 drives the screw 32 to rotate. As the screw 32 rotates, it drives the threaded block 33 to slide under the guidance of the sliding column 34, thereby adjusting the left and right movement position of the drill sleeve 5.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A precision positioning fixture for machining precision parts, comprising a connecting seat (1), characterized in that: The connecting seat (1) is provided with a clamping and fixing mechanism (2), the connecting seat (1) is provided with a shifting mechanism (3), the shifting mechanism (3) is provided with a connecting frame (4) on top, and a drill sleeve (5) is fixedly connected to the top of the connecting frame (4). The clamping and fixing mechanism (2) includes a clamping component (21) and a fixing component (22), wherein the fixing component (22) is disposed at the bottom of the clamping component (21); The clamping assembly (21) includes a handle (211), which is rotatably connected inside the connecting seat (1). A first bevel gear (212) is fixedly connected to the outside of the handle (211). A second bevel gear (213) meshes with the outside of the first bevel gear (212). A screw (214) is fixedly connected to the top of the second bevel gear (213). A lifting frame (215) is threadedly connected to the outside of the screw (214). A connecting rod (216) is rotatably connected to the top of the lifting frame (215). A slide (217) is rotatably connected to the end of the connecting rod (216) away from the lifting frame (215). A sliding sleeve (218) is fixedly connected to the top of the slide (217). A clamping plate (2110) is fixedly connected to the top of the slide (217). A support plate (219) is fixedly connected inside the connecting seat (1).

2. The precision positioning fixture for machining precision parts according to claim 1, characterized in that: The second bevel gear (213) is rotatably connected inside the connecting seat (1), and the first screw (214) is rotatably connected to the bottom of the support plate (219).

3. A precision positioning fixture for machining precision parts according to claim 1, characterized in that: The slide (217) has a groove at the corresponding position of the support plate (219), and the slide (217) is slidably connected in the groove.

4. A precision positioning fixture for machining precision parts according to claim 1, characterized in that: The fixing component (22) includes a connecting sleeve (221), which is fixedly connected to the bottom of the slide (217). A pressure column (222) is slidably connected inside the connecting sleeve (221). A push rod (224) is rotatably connected to the front and rear sides of the pressure column (222). A pressure rod (223) is rotatably connected to the end of the push rod (224) away from the pressure column (222). A pull rod (225) is fixedly connected to the top of the push rod (224). A clamping plate (226) is slidably connected inside the slide (218). A spring (227) is fixedly connected between the clamping plate (226) and the slide (218).

5. A precision positioning fixture for machining precision parts according to claim 4, characterized in that: The pressure rod (223) is rotatably connected to the front and rear sides of the connecting sleeve (221), and the pressure column (222) is provided with a through groove at the corresponding position of the connecting sleeve (221), and the pressure column (222) is slidably connected in the through groove.

6. A precision positioning fixture for machining precision parts according to claim 1, characterized in that: The shifting mechanism (3) includes a handle ring (31), which is rotatably connected to the left side of the connecting seat (1). A screw rod (32) is rotatably connected to the right side of the handle ring (31). A threaded block (33) is threadedly connected to the outside of the screw rod (32). A sliding column (34) is fixedly connected inside the connecting seat (1).

7. A precision positioning fixture for machining precision parts according to claim 6, characterized in that: The screw 2 (32) is rotatably connected inside the connecting seat (1), and the threaded block (33) is slidably connected outside the slide column (34), and the connecting frame (4) is fixedly connected to the top of the threaded block (33).

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