Positioning pin machining locking jig

Abstract

The utility model relates to a positioning pin processing locking jig, including device bottom plate, device bottom plate top corner all installs the one end of support rod, the other end fixed locking platform of support rod, locking platform top installs drive motor, the output shaft fixed with first rotary disc of drive motor top, the periphery ring of first rotary disc is evenly distributed with a plurality of bearings, and the inside of a plurality of bearings all stretches into and connects the link body, and the inner ring rotation is connected with bearing of link body, and the one end away from bearing of link body is equipped with locking assembly, is used for locking from the inside of positioning pin, the utility model discloses from inside positioning positioning pin through locking link body and arc locking plate, and the outer surface processing is convenient, and the annular plate rotation can drive a plurality of positioning pin whole rotation, make positioning pin surface different parts can be processed, improve the processing efficiency and effect, avoid the frequent switching external clamping mechanism, solved the defect that the bottom surface is difficult to process.

Description

Technical Field

[0001] This utility model relates to the field of positioning pin processing, specifically a positioning pin processing locking fixture. Background Technology

[0002] Locating pins are parts that restrict the degrees of freedom of an object. They are used in some mechanical moving equipment, mainly for determining the position in two-dimensional space. Locating pin machining is the process of manufacturing locating pins, and jigs are needed for machining during the locating pin machining process.

[0003] Patent application CN222644306U discloses an automatic locking fixture for processing positioning pins. It includes a base plate, a first motor fixedly connected to its lower end, a support platform fixedly connected to the output shaft of the first motor, a support rod rotatably connected to the upper end of the base plate, a connecting seat fixedly connected to the output end of the electric telescopic rod, a pressure plate rotatably connected to the lower end of the connecting seat, and a fixed seat fixedly connected to the upper end of the base plate. A bidirectional threaded rod is rotatably connected inside the fixed seat, and two clamping plates are threadedly connected to the circumferential surface of the bidirectional threaded rod. A guide rod is fixedly connected inside the fixed seat, passing through the two clamping plates, and both clamping plates are slidably connected to the guide rod. This invention provides two different methods for clamping and fixing positioning pins, allowing for the selection of a suitable method based on specific processing needs, thus facilitating more comprehensive processing of the positioning pins.

[0004] However, in practical applications, traditional automatic locking fixtures for locating pins typically use threaded rods to drive clamping plates and pressure plates to clamp the locating pins at different positions to meet processing needs. This method requires multiple changes or switching of the clamping mechanism during operation, resulting in cumbersome locking steps and low efficiency. In addition, the clamping plates mainly clamp from both sides, while the pressure plates press from the top, only switching between processing the upper and side parts of the locating pin. Processing the bottom surface still requires manual readjustment of the workpiece position, making it inconvenient to use overall. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a locking fixture for locating pin processing. This solves the problem that current traditional automatic locking fixtures for locating pin processing typically use a threaded rod to drive a clamping plate and a pressure plate to clamp the locating pin at different positions to meet processing needs. This method requires multiple changes or switching of the clamping mechanism during operation, resulting in cumbersome locking steps and low efficiency. In addition, the clamping plate mainly clamps from both sides, and the pressure plate presses from the top, only switching between processing the upper and side parts of the locating pin, while processing the bottom surface still requires manual readjustment of the workpiece position, making the overall use inconvenient.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a positioning pin processing and locking fixture is designed, including a device base plate. One end of a support rod is installed at each of the four corners of the top of the device base plate. A locking platform is fixed at the other end of the support rod. A drive motor is installed on the top of the locking platform. A first rotating disk is fixed to the output shaft of the drive motor. Multiple bearings are evenly distributed in a ring around the outer periphery of the first rotating disk. A connecting rod extends into each of the multiple bearings. The connecting rod is rotatably connected to the inner ring of the bearing. A locking component is provided at the end of the connecting rod away from the bearing for locking from inside the positioning pin.

[0007] In practical applications, the first rotating disk is driven by a drive motor. The bearings on the outer periphery of the rotating disk cooperate with the connecting rod body, so that the locking component can move synchronously with the rotating disk and lock from inside the positioning pin. This achieves positioning and fixing from inside the positioning pin, avoiding the limitation of traditional structures that can only be clamped from the outside, and improving the stability of the workpiece and the comprehensiveness of processing.

[0008] Preferably, the locking assembly includes a locking rod, the locking rod having multiple circular grooves on its exterior, and one end of a spring fixed inside each of the multiple circular grooves.

[0009] In practical applications, when the locking rod is inserted into the internal threaded hole of the positioning pin, the spring provides elastic force, which causes the arc-shaped locking plate connected to it to generate a continuous clamping force. The automatic clamping is achieved by relying on the elasticity of the spring, reducing manual adjustment steps and improving the convenience of operation and locking reliability.

[0010] Preferably, the other end of the spring is connected to a movable rod that extends into the circular groove, and an arc-shaped locking plate is fixed to one end of the movable rod that extends out of the circular groove.

[0011] Preferably, the top of the locking platform is provided with an annular groove, and an annular electric slide rail is installed inside the annular groove.

[0012] In practical applications, the annular electric slide rail can run within the annular groove, driving the connected components to make annular movements. The annular electric slide rail ensures the smoothness and flexibility of gear and toothed transmission, providing a power transmission basis for simultaneous processing at multiple workstations.

[0013] Preferably, the top of the annular electric slide rail is connected to a slider, which is connected to a fixed ring extending into the annular groove. The fixed ring has multiple toothed grooves around its top edge extending out of the annular groove.

[0014] In practical applications, the slide rail motion drives the slider and the fixed ring to rotate. The toothed groove of the fixed ring meshes with the external gear to achieve synchronous drive. Through the meshing of the toothed groove and the gear, multiple positioning pins can simultaneously achieve angle adjustment and rotation, improving processing efficiency.

[0015] Preferably, multiple gears are engaged at the top of the tooth groove, and a connecting rod penetrates through the interior of each gear, with the penetration position of the connecting rod and the gear fixed.

[0016] In practical applications, the gear and tooth groove meshing drive the connecting rod and locking assembly to rotate synchronously. Multiple workpieces can maintain synchronous rotation under the same drive, ensuring uniform distribution of processing positions and realizing multi-station batch processing.

[0017] Preferably, a second rotating disk is mounted on top of the first rotating disk, and a plurality of movable plates are evenly distributed around the outer periphery of the second rotating disk. Each movable plate has cleaning bristles mounted on its bottom, and the cleaning bristles extend into multiple grooves in a fixed ring for cleaning the grooves. In practical applications, the second rotating disk rotates continuously as the motor runs, driving the moving plate and cleaning bristles to clean the tooth grooves of the fixed ring. During the processing, the cleaning bristles can clean the debris in the tooth grooves in real time, avoiding affecting the meshing accuracy of the gears and tooth grooves, ensuring transmission reliability, and eliminating the need for additional cleaning steps.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model combines a drive motor, a rotating disk, and a locking assembly. Multiple locking rods and arc-shaped locking plates are evenly distributed around the circumference of the rotating disk. When the locking rods and arc-shaped locking plates are inserted into the internal threaded holes of the positioning pins, the arc-shaped locking plates automatically press against the inner wall of the internal threaded holes using the spring force within the circular grooves on the surface of the locking rods. This achieves internal positioning of the positioning pins, facilitating the machining of their outer surfaces. Simultaneously, gears are installed on the outside of the connecting rods, meshing with the toothed grooves on the bottom annular plate. When the annular plate rotates, it drives multiple gears and connecting rods to rotate synchronously via bearings, thereby driving the multiple locking rods and their locked positioning pins to rotate as a whole. This allows different parts of the positioning pin surface to be machined, greatly improving machining efficiency and effectiveness. Compared with existing technologies, this not only avoids the problem of frequently switching external clamping mechanisms but also solves the defect of difficult-to-machine the bottom surface.

[0019] 2. This utility model combines a drive motor, a rotating disk, and cleaning bristles. Not only can the drive motor rotate the first rotating disk to adjust the different locking positions of multiple positioning pins, but the second rotating disk also rotates synchronously while the motor is running. The second rotating disk further drives the moving plate and cleaning bristles to rotate, allowing the bristles to clean the toothed grooves on the top of the annular plate, removing debris generated during processing and preventing debris accumulation from affecting the meshing transmission of the toothed grooves and gears. By integrating the cleaning mechanism with the position adjustment mechanism, multiple additional drive devices are eliminated, resulting in a more compact structure and more convenient operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drive motor of this utility model; Figure 3 This is a schematic diagram of the locking assembly structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the annular groove of this utility model; In the diagram: 1. Locking platform; 101. Support rod; 102. Device base plate; 2. Fixed ring; 201. First rotating disk; 202. Bearing; 203. Gear; 204. Connecting rod; 205. Locking rod; 206. Gear groove; 207. Drive motor; 208. Output shaft; 209. Circular groove; 210. Spring; 211. Moving rod; 212. Arc-shaped locking plate; 213. Annular groove; 214. Annular electric slide rail; 215. Slider; 3. Second rotating disk; 301. Moving plate; 302. Cleaning brush bristles. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A locking fixture for machining locating pins, see [link / reference] Figures 1 to 4 The device includes a base plate 102. Support rods 101 are installed at one end of each of the four corners of the top of the base plate 102. Locking platform 1 is fixed to the other end of the support rods 101. A drive motor 207 is installed on the top of the locking platform 1. A first rotating disk 201 is fixed to the output shaft 208 on the top of the drive motor 207. Multiple bearings 202 are evenly distributed around the outer circumference of the first rotating disk 201. A connecting rod 204 extends into each of the multiple bearings 202. The connecting rod 204 is rotatably connected to the inner ring of the bearing 202. A locking component is provided at the end of the connecting rod 204 away from the bearing 202 for locking from inside the positioning pin. The drive motor 207 is fixedly installed on the top of the locking platform 1, and its output shaft 208 is fixedly connected to the first rotating disk 201. When the motor starts, it can drive the first rotating disk 201 to rotate continuously. The first rotating disk 201 drives the multiple bearings 202 arranged on its periphery to rotate, so that the connecting rod 204 installed inside the bearing 202 moves accordingly, thereby adjusting the position of multiple positioning pins.

[0022] For details, see Figure 3 The locking assembly includes a locking rod 205. The locking rod 205 has multiple circular grooves 209 on its outside. One end of a spring 210 is fixed inside the multiple circular grooves 209. The other end of the spring 210 is connected to a moving rod 211 that extends into the circular groove 209. An arc-shaped locking plate 212 is fixed to one end of the moving rod 211 that extends out of the circular groove 209.

[0023] Since the locking rod 205 is connected to the connecting rod body 204, when the locking rod 205 is inserted into the internal threaded hole of the positioning pin, the spring 210 in the circular groove 209 on the surface of the locking rod 205 is compressed. The restoring force of the spring 210 pushes the moving rod 211 outward, thereby causing the arc-shaped locking plate 212 to open and press against the inner wall of the internal threaded hole, realizing internal expansion locking. As the first rotating disk 201 rotates, the connecting rod body 204 drives the locking assembly to rotate synchronously, so that the positioning pin is fixed as a whole and moves accordingly.

[0024] Further, see Figure 4 The locking platform 1 has an annular groove 213 at the top, and an annular electric slide rail 214 is installed inside the annular groove 213. A slider 215 is connected to the top of the annular electric slide rail 214. The slider 215 is connected to a fixed ring 2 that extends into the annular groove 213. The fixed ring 2 has multiple toothed grooves 206 around its top extending out of the annular groove 213. Multiple gears 203 are meshed at the top of the toothed grooves 206. A connecting rod 204 passes through the inside of each gear 203, and the penetration position of the connecting rod 204 and the gear 203 is fixed.

[0025] When multi-angle machining of the positioning pin is required, the annular electric slide rail 214 can be activated. The annular electric slide rail 214 drives the slider 215 at its top to move in annularly. The slider 215 can drive the fixed ring 2 to move uniformly along the annular groove 213. When the fixed ring 2 rotates, the tooth groove 206 drives the gear 203 to rotate synchronously. The gear 203 further drives the through connecting rod 204 to rotate through the bearing 202, so that multiple locking components and positioning pins can rotate synchronously under the same power. The machining equipment can then machine different parts of the positioning pin.

[0026] It is worth noting that, see Figure 1 The first rotating disk 201 is equipped with a second rotating disk 3 on its top. Multiple movable plates 301 are evenly distributed around the outer periphery of the second rotating disk 3. Each movable plate 301 is equipped with a cleaning brush 302 at its bottom. The cleaning brush 302 extends into multiple toothed grooves 206 of the fixed ring 2 for cleaning the toothed grooves 206.

[0027] When the drive motor 207 is running continuously, the first rotating disk 201 will drive the second rotating disk 3 to rotate, and the second rotating disk 3 will drive the moving plate 301 and the cleaning brush 302 to rotate. During the rotation, the cleaning brush 302 continuously brushes the tooth groove 206 to clean up the metal shavings or dust generated during the processing in time, and prevents the debris from entering the tooth groove 206 and affecting the meshing of the gear 203. This mechanism integrates the cleaning function and the position adjustment function, and does not require an additional drive device.

[0028] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A positioning pin processing locking fixture, comprising a device base plate (102), wherein one end of a support rod (101) is installed at each of the four corners of the top of the device base plate (102), and a locking platform (1) is fixed to the other end of the support rod (101), characterized in that, The locking platform (1) is equipped with a drive motor (207) on top. The output shaft (208) on the top of the drive motor (207) is fixed with a first rotating disk (201). Multiple bearings (202) are evenly distributed around the outer periphery of the first rotating disk (201). A connecting rod (204) extends into each of the multiple bearings (202). The connecting rod (204) is rotatably connected to the inner ring of the bearing (202). A locking component is provided at the end of the connecting rod (204) away from the bearing (202) for locking from inside the positioning pin.

2. The positioning pin machining locking fixture as described in claim 1, characterized in that, The locking assembly includes a locking rod (205), which has multiple circular grooves (209) on its outside, and one end of a spring (210) is fixed inside the multiple circular grooves (209).

3. The positioning pin machining locking fixture as described in claim 2, characterized in that, The other end of the spring (210) is connected to a movable rod (211) that extends into the circular groove (209), and an arc-shaped locking plate (212) is fixed to one end of the movable rod (211) that extends out of the circular groove (209).

4. The positioning pin machining locking fixture as described in claim 1, characterized in that, The locking platform (1) has an annular groove (213) on its top, and an annular electric slide rail (214) is installed inside the annular groove (213).

5. The positioning pin machining locking fixture as described in claim 4, characterized in that, The top of the annular electric slide rail (214) is connected to a slider (215), and the slider (215) is connected to a fixed ring (2) that extends into the annular groove (213). The fixed ring (2) has multiple toothed grooves (206) around its top edge extending out of the annular groove (213).

6. The positioning pin machining locking fixture as described in claim 5, characterized in that, Multiple gears (203) are meshed at the top of the tooth groove (206), and a connecting rod (204) passes through the interior of each gear (203), and the penetration position of the connecting rod (204) and the gear (203) is fixed.

7. The positioning pin machining locking fixture as described in claim 1, characterized in that, The first rotating disk (201) is equipped with a second rotating disk (3) on its top. Multiple movable plates (301) are evenly distributed around the outer periphery of the second rotating disk (3). Cleaning bristles (302) are installed at the bottom of each of the multiple movable plates (301). The cleaning bristles (302) extend into multiple tooth grooves (206) of the fixed ring (2) for cleaning the tooth grooves (206).

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