Limiting and fixing device

Abstract

The utility model relates to the technical field of fixing devices, in particular to a limiting and fixing device which comprises a fixing device body, a plurality of clamping mechanisms are mechanically connected to the top end of the fixing device body and slidably connected to the top end of the fixing device body, and a transmission mechanism is fixed to the bottom end of the fixing device body through bolts. And the clamping mechanism penetrates through the fixing device main body to the interior of the clamping mechanism. According to the automobile part fixing device, the sliding columns can be driven to synchronously slide at the top end of the fixing device main body through mutual matching of internal parts of the servo mechanism, so that the automobile parts are accurately clamped and fixed on the fixing device main body through the clamping plates fixedly connected to the sliding columns; and a worker can quickly replace the clamping plates on the sliding columns, so that the worker can replace the corresponding clamping plates according to the automobile parts in different shapes.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, specifically to a limiting fixing device. Background Technology

[0002] Automotive parts are the various units that make up the overall automotive parts processing and the products that serve automotive parts processing. To reduce costs and capture market share, many multinational automotive parts companies are expanding internationally. When drilling or grinding automotive parts, limiting and fixing devices are needed to secure them.

[0003] A search revealed a utility model patent with publication number CN221640429U, which discloses a limiting and fixing device belonging to the field of fixing device technology. The device includes a support platform with a motor housing fixedly connected to its side. A drive motor is fixedly installed inside the motor housing. A groove is formed on the top of the support platform, and a bearing is fixedly connected to the side of the inner wall of the groove. A rotating shaft is rotatably connected inside the bearing. One end of the rotating shaft is fixedly connected to the output shaft of the drive motor. A bidirectional lead screw is fixedly connected to the surface of the rotating shaft, and two movable blocks are threadedly connected to the surface of the bidirectional lead screw. The drive motor rotates the rotating shaft, which in turn rotates the bidirectional lead screw. The threaded connection between the bidirectional lead screw and the two movable blocks causes two clamping frames to move towards each other, achieving the purpose of fixing and clamping the polished object. A water pump, through a water pipe and nozzle, sprays water to clean and cool the surface of the polished object. A limiting cylinder is used to limit the movement of the nozzle.

[0004] Although the aforementioned patent achieves the purpose of fixing and clamping the polished item by using a two-way lead screw connected to two movable blocks to move the two clamping frames towards each other, and uses a water pump to spray water to clean and cool the surface of the polished item through a water pipe and nozzle, the limiting and fixing device needs to clamp and limit different shaped car parts in actual use. Different shaped car parts require matching clamping plates to fit perfectly with the car parts, thereby improving the stability of clamping and fixing the car parts. However, the existing device is inconvenient to replace and connect the clamping plates, and multiple clamping plates cannot move synchronously on the device surface to accurately clamp and position the car parts, causing the car parts to require secondary positioning by the operator during processing.

[0005] Therefore, it is necessary to propose a limiting and fixing device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a limiting and fixing device. Through the cooperation of the internal parts of the servo mechanism, multiple sliding columns can be driven to slide synchronously on the top of the fixing device body, improving the precise clamping and fixing of automotive parts on the fixing device body by the clamping plates on the sliding columns. Through the cooperation of the internal parts of the clamping mechanism, the operator can quickly change the clamping plates on the sliding columns, allowing the operator to change the appropriate clamping plates according to different shaped automotive parts. This solves the problem that the existing devices are inconvenient to change and connect the clamping plates, and that multiple clamping plates cannot move synchronously on the device surface to accurately clamp and position automotive parts, causing the operator to need to perform secondary positioning during the processing of automotive parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a limiting and fixing device, comprising a fixing device body, wherein a plurality of clamping mechanisms are mechanically connected to the top end of the fixing device body and are slidably connected to the top end of the fixing device body, and a transmission mechanism is bolted to the bottom end of the fixing device body and extends through the fixing device body to the interior of the clamping mechanisms;

[0008] The clamping mechanism includes a fixing plate, which is machined around the top of the main body of the fixing device. A threaded rod is rotatably connected to one side of the fixing plate and extends into the interior of the fixing plate. A sliding column is sleeved on the outer wall of the threaded rod and slidably connected to the top of the main body of the fixing device. A clamping plate is connected to the side of the sliding column away from the fixing plate and extends into the interior of the sliding column.

[0009] The transmission mechanism includes a servo motor, which is bolted to the bottom of the main body of the fixing device. The output end of the servo motor is connected to a connecting bevel gear and is located inside the main body of the fixing device. A transmission rod is provided around the top of the connecting bevel gear and is rotatably connected to the inside of the main body of the fixing device. A transmission bevel gear is mechanically connected to the side of the transmission rod near the connecting bevel gear, and a transmission gear is mechanically connected to the side of the transmission rod away from the transmission bevel gear. A connecting gear is rotatably connected inside the fixing plate and is located above the transmission gear, and is sleeved with the outer wall of the threaded rod.

[0010] Preferably, the clamping mechanism further includes connecting blocks, and there are multiple connecting blocks. The multiple connecting blocks are slidably connected to the inside of the sliding column and located at the top and bottom ends of the threaded rod. The bottom end of the connecting block is machined with a support plate and is slidably connected to the inside of the sliding column. The side of the support plate away from the connecting block is machined with a fixing block and extends through the sliding column to the inside of the clamping plate. A support spring is connected between the bottom end of the support plate and the inside of the sliding column.

[0011] Preferably, the connecting bevel gear and the transmission bevel gear mesh with each other through tooth blocks, and the transmission gear and the connecting gear mesh with each other through tooth grooves. The main body of the fixing device has a transmission groove inside that matches the connecting bevel gear and the transmission bevel gear.

[0012] Preferably, the top of the fixing device body is provided with a placement groove that matches the component, the top of the fixing device body is machined with a slide rail, and the bottom of the sliding column is provided with a slide groove that matches the slide rail.

[0013] Preferably, the sliding column has an internal thread that matches the thread on the outer wall of the threaded rod, the servo motor has a connecting groove that matches the connecting gear, one end of the sliding column has an installation groove that matches the clamping plate, and the two ends of the outer wall of the clamping plate are machined with elastic blocks.

[0014] Preferably, the contact surfaces of the threaded rod and the connecting block are both provided with tapered surfaces, and the sliding column has a support groove inside that matches the support plate, and the clamping plate has a fixing groove inside that matches the fixing block.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By starting the servo motor, the servo motor drives the connecting bevel gear to rotate. The rotation of the connecting bevel gear drives the transmission bevel gear to rotate, which in turn drives the transmission rod to rotate. The rotation of the transmission rod drives the transmission gear to rotate, which in turn drives the connecting gear to rotate. The rotation of the connecting gear drives the threaded rod to rotate, which in turn drives the sliding column to slide on the top of the fixing device body through the slide rail. This allows multiple sliding columns to slide synchronously, driving the clamping plate to clamp and fix the automotive parts, thus accurately positioning the automotive parts on the fixing device body.

[0017] 2. The threaded rod is sleeved with the sliding column, causing the threaded rod to contact and press against the connecting block. The connecting block, under pressure, causes the support plate to compress the support spring, which in turn moves the support plate and drives the fixed block to move out of the clamping plate. This releases the connection between the sliding column and the clamping plate, making it easier for workers to remove and replace the clamping plate from the sliding column. Simultaneously, when the threaded rod rotates and moves away from the sliding column, the pressure on the connecting block is released, allowing the support spring to return to its original position and push the support plate to drive the fixed block through into the clamping plate. This facilitates the quick replacement of the clamping plate on the sliding column, enabling workers to replace clamping plates with appropriate ones for different shaped automotive parts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the main body of the fixing device of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the sliding column of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fixing device main body; 2. Clamping mechanism; 201. Fixing plate; 202. Threaded rod; 203. Sliding column; 204. Clamping plate; 205. Connecting block; 206. Support plate; 207. Fixing block; 208. Supporting spring; 3. Transmission mechanism; 301. Servo motor; 302. Connecting bevel gear; 303. Transmission rod; 304. Transmission bevel gear; 305. Transmission gear; 306. Connecting gear. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The limiting and fixing device shown includes a fixing device body 1. The top end of the fixing device body 1 is mechanically connected to a plurality of clamping mechanisms 2 and slidably connected to the top end of the fixing device body 1. The bottom end of the fixing device body 1 is bolted to a transmission mechanism 3, which penetrates the fixing device body 1 to the interior of the clamping mechanism 2.

[0028] The clamping mechanism 2 includes a fixing plate 201, which is machined around the top of the main body 1 of the fixing device. A threaded rod 202 is rotatably connected to one side of the fixing plate 201 and extends into the interior of the fixing plate 201. A sliding column 203 is sleeved on the outer wall of the threaded rod 202 and is slidably connected to the top of the main body 1 of the fixing device. A clamping plate 204 is connected to the side of the sliding column 203 away from the fixing plate 201 and extends into the interior of the sliding column 203.

[0029] The transmission mechanism 3 includes a servo motor 301, which is bolted to the bottom of the main body 1 of the fixing device. The output end of the servo motor 301 is connected to a connecting bevel gear 302 and is located inside the main body 1 of the fixing device. A transmission rod 303 is provided around the top of the connecting bevel gear 302 and is rotatably connected to the inside of the main body 1 of the fixing device. A transmission bevel gear 304 is mechanically connected to the side of the transmission rod 303 near the connecting bevel gear 302, and a transmission gear 305 is mechanically connected to the side of the transmission rod 303 away from the transmission bevel gear 304. A connecting gear 306 is rotatably connected inside the fixing plate 201 and is located above the transmission gear 305 and is sleeved with the outer wall of the threaded rod 202.

[0030] Through the cooperation between the internal parts of the servo mechanism 3, multiple sliding columns 203 can be driven to slide synchronously on the top of the fixing device body 1, and the clamping plate 204 on the sliding column 203 can be used to accurately clamp and fix the car parts on the fixing device body 1. Through the cooperation between the internal parts of the clamping mechanism 2, the operator can quickly change the clamping plate 204 on the sliding column 203, so that the operator can change the appropriate clamping plate 204 according to the different shapes of car parts.

[0031] Refer to the instruction manual appendix Figure 1-5 The clamping mechanism 2 also includes connecting blocks 205. There are multiple connecting blocks 205, which are slidably connected to the inside of the sliding column 203 and located at the top and bottom of the threaded rod 202. The bottom end of the connecting block 205 is machined with a support plate 206, which is slidably connected to the inside of the sliding column 203. The side of the support plate 206 away from the connecting block 205 is machined with a fixing block 207, which passes through the sliding column 203 to the inside of the clamping plate 204. The bottom end of the support plate 206 is connected to the inside of the sliding column 203 with a support spring 208. Through the mutual cooperation between the internal parts of the clamping mechanism 2, it is convenient for the operator to quickly replace the clamping plate 204 on the sliding column 203, so that the operator can replace the appropriate clamping plate 204 according to the different shapes of automotive parts.

[0032] Refer to the instruction manual appendix Figure 1-5The connecting bevel gear 302 and the transmission bevel gear 304 mesh with each other through tooth blocks, and the transmission gear 305 and the connecting gear 306 mesh with each other through tooth grooves. The main body 1 of the fixing device has a transmission groove inside that matches the connecting bevel gear 302 and the transmission bevel gear 304. The connecting bevel gear 302 and the transmission bevel gear 304 mesh with each other through tooth blocks, and the transmission gear 305 and the connecting gear 306 mesh with each other through tooth grooves, so that the rotation of the connecting bevel gear 302 drives the rotation of the transmission bevel gear 304, and the rotation of the transmission gear 305 drives the rotation of the connecting gear 306.

[0033] Refer to the instruction manual appendix Figure 1-5 The top of the fixing device body 1 is provided with a placement groove that matches the parts. The top of the fixing device body 1 is machined with a slide rail, and the bottom of the sliding column 203 is provided with a slide groove that matches the slide rail. The slide rail machined at the top of the fixing device body 1 and the slide groove provided at the bottom of the sliding column 203 facilitate the stable sliding of the sliding column 203 at the top of the fixing device body 1.

[0034] Refer to the instruction manual appendix Figure 1-5 The sliding column 203 has an internal thread that matches the thread on the outer wall of the threaded rod 202. The servo motor 301 has a connecting groove that matches the connecting gear 306. One end of the sliding column 203 has an installation groove that matches the clamping plate 204. Both ends of the outer wall of the clamping plate 204 are machined with elastic blocks. The clamping plate 204 is pre-fixed to the sliding column 203 by means of the installation groove that matches the clamping plate 204 at one end of the sliding column 203 and the elastic blocks machined at both ends of the outer wall of the clamping plate 204.

[0035] Refer to the instruction manual appendix Figure 1-5 The threaded rod 202 has a tapered surface on one side of its contact surface with the connecting block 205. The sliding column 203 has a support groove inside that matches the support plate 206. The clamping plate 204 has a fixing groove inside that matches the fixing block 207. The fixing groove inside the clamping plate 204 makes it easy for the fixing block 207 to pass through the sliding column 203 into the clamping plate 204, thus completing the connection and fixation between the clamping plate 204 and the sliding column 203.

[0036] The working principle of this practical application is as follows:

[0037] Refer to the instruction manual appendix Figure 1-5By starting the servo motor 301, the servo motor 301 drives the connecting bevel gear 302 to rotate. The rotation of the connecting bevel gear 302 drives the transmission bevel gear 304 to rotate, which in turn drives the transmission rod 303 to rotate. The rotation of the transmission rod 303 drives the transmission gear 305 to rotate, which in turn drives the connecting gear 306 to rotate. The rotation of the connecting gear 306 drives the threaded rod 202 to rotate, which in turn drives the sliding column 203 to slide on the top of the fixing device body 1 via the slide rail. This allows multiple sliding columns 203 to slide synchronously, driving the clamping plate 204 to clamp and fix the automotive parts, thus accurately positioning the automotive parts on the fixing device body 1.

[0038] Refer to the instruction manual appendix Figure 1-5 The threaded rod 202 is sleeved with the sliding column 203, so that the threaded rod 202 contacts and presses the connecting block 205. The connecting block 205 is forced to drive the support plate 206 to compress the support spring 208 and move. The movement of the support plate 206 causes the fixing block 207 to move, so that the fixing block 207 moves out of the clamping plate 204, releasing the connection between the sliding column 203 and the clamping plate 204. This makes it easier for the staff to remove and replace the clamping plate 204 from the sliding column 203. At the same time, when the threaded rod 202 rotates and moves away from the sliding column 203, the compression on the connecting block 205 is released, and the support spring 208 returns to its original position, pushing the support plate 206 to drive the fixing block 207 through into the clamping plate 204. This allows the staff to quickly replace the clamping plate 204 on the sliding column 203, and allows the staff to replace the clamping plate 204 with the appropriate clamping plate 204 according to the different shapes of automotive parts.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A position limiting fixture, characterized in that: Including the fixed device main part (1), the top end of the fixed device main part (1) is mechanically connected with multiple clamping mechanisms (2), and is slidingly connected to the top end of the fixed device main part (1), the bottom end of the fixed device main part (1) is bolted with a transmission mechanism (3), and penetrates through the fixed device main part (1) to the inside of the clamping mechanism (2); The clamping mechanism (2) comprises a fixed plate (201) machined around the top end of the fixed device main part (1), one side of the fixed plate (201) is rotatably connected with a threaded rod (202) penetrating into the inside of the fixed plate (201), the outer wall of the threaded rod (202) is sleeved with a sliding column (203) slidingly connected to the top end of the fixed device main part (1), the side of the sliding column (203) away from the fixed plate (201) is connected with a clamping plate (204) penetrating into the inside of the sliding column (203); The transmission mechanism (3) comprises a servo motor (301) bolted at the bottom end of the fixed device main part (1), the output end of the servo motor (301) is connected with a connecting bevel gear (302) located in the inside of the fixed device main part (1), the top end of the connecting bevel gear (302) is provided with a transmission rod (303) rotatably connected to the inside of the fixed device main part (1), the side of the transmission rod (303) close to the connecting bevel gear (302) is mechanically connected with a transmission bevel gear (304), the side of the transmission rod (303) away from the transmission bevel gear (304) is mechanically connected with a transmission gear (305), the inside of the fixed plate (201) is rotatably connected with a connecting gear (306) located above the transmission gear (305) and sleeved with the outer wall of the threaded rod (202).

2. The limiting and fixing device according to claim 1, characterized in that: The clamping mechanism (2) further comprises a connecting block (205), the connecting block (205) has multiple, multiple connecting blocks (205) are slidingly connected to the inside of the sliding column (203) and located at the top end and the bottom end of the threaded rod (202), the bottom end of the connecting block (205) is machined with a support plate (206) slidingly connected to the inside of the sliding column (203), the side of the support plate (206) away from the connecting block (205) is machined with a fixed block (207) penetrating through the sliding column (203) to the inside of the clamping plate (204), the support spring (208) is connected between the bottom end of the support plate (206) and the inside of the sliding column (203).

3. The position limiting and fixing device according to claim 1, characterized in that: The connecting bevel gear (302) and the transmission bevel gear (304) are engaged with each other through the tooth block, the transmission gear (305) and the connecting gear (306) are engaged with each other through the tooth groove, the inside of the fixed device main part (1) is provided with a transmission groove matched with the connecting bevel gear (302) and the transmission bevel gear (304).

4. The position limiting and fixing device according to claim 1, characterized in that: The top end of the fixed device main part (1) is provided with a placing groove matched with the parts, the top end of the fixed device main part (1) is machined with a sliding rail, and the bottom end of the sliding column (203) is provided with a sliding groove matched with the sliding rail.

5. The position limiting fixture of claim 1, wherein: The inside of the sliding column (203) is provided with internal threads matched with the external threads of the threaded rod (202), the inside of the servo motor (301) is provided with a connecting groove matched with the connecting gear (306), one end of the sliding column (203) is provided with a mounting groove matched with the clamping plate (204), and the external wall of the clamping plate (204) is mechanically processed with elastic clamping blocks at both ends.

6. The position limiting fixture of claim 2, wherein: The contact surface of one side of the threaded rod (202) and the connecting block (205) is provided with a tapered surface, the inside of the sliding column (203) is provided with a supporting groove matched with the supporting plate (206), and the inside of the clamping plate (204) is provided with a fixing groove matched with the fixing block (207).

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