Shot blasting device convenient to clamp and used for surface treatment of A column and B column

By combining the clamping mechanism and the support mechanism, the problem of the inability to easily clamp and flip the A and B pillars in the existing technology is solved, thus improving the efficiency of shot blasting.

CN224239258UActive Publication Date: 2026-05-15CHENGDU BAIJIE ZHONGYANG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU BAIJIE ZHONGYANG AUTO PARTS CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing shot blasting equipment cannot easily clamp and fix A and B pillars of different sizes, nor can it stably flip them, affecting surface treatment efficiency.

Method used

The system employs a clamping mechanism and a support mechanism. The tops of the A and B pillars are clamped by a dual-axis motor driven by an adjusting screw. The height of the support plate is adjusted by a hydraulic cylinder. The bottom of the limiting plate is clamped by spring force. The A and B pillars are rotated by a servo motor to achieve shot blasting treatment at different positions on the surface.

Benefits of technology

It enables stable clamping and flipping of A and B pillars of different sizes, improves surface treatment efficiency, and ensures the stability and efficiency of shot blasting operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a conveniently clamped shot blasting device for surface treatment of A and B columns, and relates to the technical field of surface treatment of automobile parts, the conveniently clamped shot blasting device comprises a shot blasting machine body, a clamping mechanism and a supporting mechanism, the clamping mechanism comprises three mounting plates, double-shaft motors are arranged on the inner walls of the three mounting plates, and the inner walls of the three mounting plates are connected with the supporting mechanism. The device comprises a double-shaft motor, two output shafts of the double-shaft motor are both provided with adjusting lead screws, the outer walls of the two adjusting lead screws are both sleeved with clamping plates in a threaded mode, the supporting mechanism comprises a movable plate, three supporting plates are arranged at the top of the movable plate at equal intervals, and limiting plates are arranged on the two sides of the top of each supporting plate. The double-shaft motor works to enable the adjusting lead screw to rotate, so that the clamping plate can clamp the tops of the A column and the B column, meanwhile, the supporting plate and the limiting plate can clamp the bottoms of the A column and the B column, and the A column and the B column are kept stable in the shot blasting treatment process.
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Description

Technical Field

[0001] This utility model relates to the field of automotive component surface treatment technology, specifically to a shot blasting device for surface treatment of A and B pillars that is easy to clamp. Background Technology

[0002] A / B pillar surface treatment shot blasting equipment is an industrial device specifically used for the surface treatment of automotive body structural parts (such as A-pillars and B-pillars). It cleans, strengthens or pre-treats the surface of the workpiece by high-speed blasting of metal shot to meet the requirements of subsequent painting, welding or corrosion resistance.

[0003] A shot blasting device for surface treatment of metal materials, disclosed in CN216633996U, includes a body, a conveyor chain, shot blasters, a dust removal device, a loading box, and a spiral feeding device. Four support legs A are symmetrically installed at the bottom of the body. Four gears are symmetrically installed at both ends inside the body. A transmission motor is mounted on the gear near the electrical control box via bearings. The conveyor chain is fixed to the gears inside the body. Two shot blasters are symmetrically fixed at the upper end of the body. An air inlet is located near the center of the upper end of the body, and an air suction pipe is fixed to the air inlet. The other end of the air suction pipe is fixed to the upper end of the dust removal device. This shot blasting device is a conveyor chain type. The limiting posts on the conveyor chain limit the metal material to be processed. The shot inside the body can fall into the loading box below for centralized conveying. The spiral conveyor facilitates the transport of the shot to the cleaning device for cleaning, allowing for reuse.

[0004] The existing technology has the following shortcomings: When performing surface treatment on the A and B pillars of automobiles, the existing shot blasting equipment cannot easily clamp and fix A and B pillars of different sizes, nor can it easily flip the A and B pillars. This makes it impossible for the equipment to stably perform shot blasting operations on different positions on the surface of the A and B pillars, which in turn affects the efficiency of the surface treatment of the A and B pillars. Utility Model Content

[0005] The purpose of this invention is to provide a shot blasting device for surface treatment of A and B pillars that is easy to clamp. The device uses a shaft motor to rotate the adjusting screw, which allows the clamping plate to clamp the top of the A and B pillars. At the same time, the support plate and the limiting plate clamp the bottom of the A and B pillars, so that the A and B pillars remain stable during the shot blasting process, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shot blasting device for surface treatment of A and B pillars that is easy to clamp, comprising a shot blasting machine body, and further comprising:

[0007] A clamping mechanism located at the top inner side of the shot blasting machine body and a support mechanism located at the bottom inner side of the shot blasting machine body;

[0008] The clamping mechanism includes three rotating shafts that are equally spaced on the inner wall of the top of the shot blasting machine body. Each of the three rotating shafts is fixedly mounted with a mounting plate at its bottom. Each of the three mounting plates is equipped with a dual-axis motor on its inner wall. Each of the two output shafts of the dual-axis motor is equipped with an adjusting screw. Each of the two adjusting screws is threaded with a clamping plate on its outer wall.

[0009] The support mechanism includes a movable plate, with three support plates evenly spaced on the top of the movable plate, and limiting plates on both sides of the top of the support plates.

[0010] Preferably, the shot blasting machine body includes a fixed outer shell, with support seats fixedly installed at both ends of the bottom of the fixed outer shell, sealing plates rotatably installed at both ends of the open side of the fixed outer shell, and a control panel fixedly installed on the outer wall of one end of the fixed outer shell.

[0011] Preferably, a storage box is fixedly installed on the bottom of one side of the outer wall of the fixed housing, three nozzles communicating with the inside of the fixed housing are fixedly installed at equal intervals on the top of the storage box, and a recycling pipe communicating with the storage box is fixedly installed on the bottom inner wall of the fixed housing.

[0012] Preferably, the inner wall of the top of the fixed housing is rotatably connected to three rotating shafts, and rotating wheels are fixedly sleeved on the outer walls of two adjacent rotating shafts. A transmission belt is provided between two adjacent rotating wheels. A servo motor is fixedly installed at one end of the top of the fixed housing, and the servo motor is connected to one of the rotating shafts through an output shaft.

[0013] Preferably, the mounting plate has a mounting groove at the bottom, the middle of the inner wall of the mounting groove is fixedly connected to a dual-axis motor, the inner walls on both sides of the mounting groove are rotatably connected to adjacent adjusting screws, and the inner walls on both sides of the mounting groove are movably connected to the outer top wall of the adjacent clamping plate.

[0014] Preferably, hydraulic cylinders are fixedly installed at both ends of the bottom of the fixed housing, and the piston rods of the two hydraulic cylinders penetrate the inner wall of the bottom of the fixed housing and are respectively connected to the two ends of the bottom of the movable plate. Three limiting grooves are equally spaced on the inner wall of the movable plate.

[0015] Preferably, the inner walls of the three limiting grooves are rotatably connected to the three support plates respectively. The inner walls of the three support plates are each provided with a movable groove. Traction springs are fixedly installed on both sides of the inner wall of the movable groove. A slider is fixedly installed on the side of the traction spring away from the inner wall of the limiting groove. The top of the slider is fixedly connected to the bottom of the adjacent limiting plate.

[0016] Preferably, fastening bolts are threaded into the inner walls on both sides of the movable groove. The side of the fastening bolt away from the inner wall of the movable groove abuts against the outer wall of the adjacent slider. The fastening bolt is movably inserted into the inner side of the adjacent traction spring.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. A dual-axis motor rotates two adjusting screws, allowing two clamping plates to clamp the tops of A and B pillars of different sizes. Simultaneously, a hydraulic cylinder adjusts the height of the movable plate and support plate. A limiting plate, under the elastic force of a traction spring, clamps the bottom of A and B pillars. Fastening bolts secure the limiting plate, ensuring the stability of A and B pillars during shot blasting. Furthermore, a servo motor, through a rotating wheel and transmission belt, drives three mounting plates to rotate A and B pillars, facilitating shot blasting of different areas on the A and B pillar surfaces and improving the efficiency of surface treatment.

[0019] 2. The installation slot can limit the movement of the clamping plate, and the movable slot can limit the movement of the slider, so that the clamping plate and the limiting plate can stably clamp and limit A and B pillars of different sizes. The limiting slot can limit the rotation of the support plate, so that the support plate remains stable during rotation. At the same time, the recycling pipe can be set to recycle the steel shot after shot blasting. Attached Figure Description

[0020] 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a left vertical sectional view of the present invention.

[0023] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0024] Figure 4 This is an exploded view of the shot blasting machine body of this utility model.

[0025] Figure 5 This is an exploded view of the clamping mechanism of this utility model.

[0026] Figure 6This is an exploded view of the support mechanism of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Shot blasting machine body; 101. Fixed outer shell; 102. Support base; 103. Sealing plate; 104. Control panel; 105. Storage bin; 106. Nozzle; 107. Recovery pipe;

[0029] 2. Clamping mechanism; 201. Rotating shaft; 202. Servo motor; 203. Rotating wheel; 204. Transmission belt; 205. Mounting plate; 206. Mounting slot; 207. Dual-axis motor; 208. Adjusting screw; 209. Clamping plate;

[0030] 3. Support mechanism; 301. Movable plate; 302. Hydraulic cylinder; 303. Limiting groove; 304. Support plate; 305. Movable groove; 306. Traction spring; 307. Slider; 308. Limiting plate; 309. Fastening bolt. Detailed Implementation

[0031] This utility model provides, for example Figure 1 The shot blasting device shown is for surface treatment of A and B pillars, which is easy to clamp. It includes a shot blasting machine body 1, and further includes:

[0032] The clamping mechanism 2 is located at the top inside the shot blasting machine body 1, and the support mechanism 3 is located at the bottom inside the shot blasting machine body 1.

[0033] For convenient clamping of the tops of A and B pillars of different sizes, such as Figure 1-2 and Figure 5 As shown, the clamping mechanism 2 includes three rotating shafts 201 equally spaced on the inner wall of the top of the shot blasting machine body 1. Each of the three rotating shafts 201 has a mounting plate 205 fixedly installed at its bottom. Each mounting plate 205 has a dual-axis motor 207 installed on its inner wall. Each of the two output shafts of the dual-axis motor 207 has an adjusting screw 208 installed on its two output shafts. Each adjusting screw 208 has a clamping plate 209 threaded onto its outer wall. The operation of the dual-axis motor 207 causes the two adjusting screws 208 to rotate, which in turn drives the two clamping plates 209 to move relative to or away from each other on their outer sides. This allows the two clamping plates 209 to clamp and fix the tops of columns A and B of different sizes. Simultaneously, the rotation of the rotating shafts 201 causes the mounting plates 205 to rotate, which in turn causes the columns A and B to rotate, enabling the device to perform shot blasting operations at different positions on the surfaces A and B.

[0034] To ensure the stability of columns A and B during shot blasting, such as Figure 1-3 and Figure 6As shown, the support mechanism 3 includes a movable plate 301, with three support plates 304 evenly spaced on the top of the movable plate 301. Each support plate 304 has a limiting plate 308 on both sides of its top. The movable plate 301 can install and fix the support plates 304. The limiting plates 308 on both sides of the top of the support plates 304 can clamp and limit the bottom of A and B columns of different sizes, so that A and B columns remain stable during shot blasting.

[0035] To facilitate shot blasting of pillars A and B, such as Figure 1-2 and Figure 4 As shown, the shot blasting machine body 1 includes a fixed outer shell 101. Support seats 102 are fixedly installed at both ends of the bottom of the fixed outer shell 101. Sealing plates 103 are rotatably installed at both ends of the open side of the fixed outer shell 101. A control panel 104 is fixedly installed on the outer wall of one end of the fixed outer shell 101. A storage box 105 is fixedly installed at the bottom of one side of the outer wall of the fixed outer shell 101. Three nozzles 106 communicating with the inside of the fixed outer shell 101 are fixedly installed at equal intervals on the top of the storage box 105. A recovery pipe 107 communicating with the storage box 105 is fixedly installed on the inner wall of the bottom of the fixed outer shell 101. The opening side of the fixed outer shell 101 can be sealed by the sealing plate 103. The fan at the feed end of the nozzle 106 is operated by the control panel 104, so that the steel shot inside the storage box 105 can be sprayed onto the surface of the A and B columns fixed by the clamping mechanism 2 and the support mechanism 3, so that the surface treatment can be performed. Excess steel shot can be recovered and processed by the recovery pipe 107.

[0036] To ensure stable shot blasting treatment at different locations on the surfaces of pillars A and B, such as Figure 2 and Figure 4-5As shown, the inner top wall of the fixed housing 101 is rotatably connected to three rotating shafts 201. Rotating wheels 203 are fixedly sleeved on the outer walls of two adjacent rotating shafts 201. A transmission belt 204 is provided between two adjacent rotating wheels 203. A servo motor 202 is fixedly installed at one end of the top of the fixed housing 101. The servo motor 202 is connected to one of the rotating shafts 201 via an output shaft. A mounting groove 206 is provided at the bottom of the mounting plate 205. The middle position of the inner wall of the mounting groove 206 is fixedly connected to a dual-axis motor 207. The inner walls on both sides of the mounting groove 206 are rotatably connected to adjacent adjusting screws 208. The inner walls on both sides of the mounting groove 206 are movably connected to the outer top wall of the adjacent clamping plate 209. The mounting groove 206 can accommodate the dual-axis motor. The control panel 104 enables the dual-axis motor 207 to operate, which in turn drives the two adjusting screws 208 to rotate, causing the two clamping plates 209 to move along the inner wall of the mounting groove 206 on their outer side, thereby clamping the tops of the A and B pillars. The control panel 104 also enables the servo motor 202 to operate, which in turn drives the adjacent rotating shaft 201 to rotate. Through the transmission action of the rotating wheel 203 and the transmission belt 204, the other two rotating shafts 201 are driven to rotate in sequence, which in turn drives the three mounting plates 205 to rotate, thereby driving the A and B pillars to rotate, so that the device can perform shot blasting treatment on different positions on the surface of the A and B pillars.

[0037] In order for support mechanism 3 to provide support for the bottoms of columns A and B at different heights, such as Figure 2 , Figure 4 and Figure 6 As shown, hydraulic cylinders 302 are fixedly installed at both ends of the bottom of the fixed housing 101. The piston rods of the two hydraulic cylinders 302 pass through the inner wall of the bottom of the fixed housing 101 and are respectively connected to the two ends of the bottom of the movable plate 301. Three limiting grooves 303 are equally spaced on the inner wall of the movable plate 301. The fixed housing 101 can install and fix the hydraulic cylinders 302. The control panel 104 makes the two hydraulic cylinders 302 work, which can drive the movable plate 301 to move on the inner wall of the fixed housing 101, thereby adjusting the height of the three support plates 304 so that the three support plates 304 can support the bottom of the A and B pillars at different heights.

[0038] In order to ensure that the limiting plate 308 can stably clamp and limit the bottom of the A and B pillars, such as Figure 2-3 and Figure 6As shown, the inner walls of the three limiting grooves 303 are rotatably connected to the three support plates 304 respectively. Each of the three support plates 304 has a movable groove 305 on its inner wall. Traction springs 306 are fixedly installed on both sides of the inner wall of the movable groove 305. A slider 307 is fixedly installed on the side of the traction spring 306 away from the inner wall of the limiting groove 303. The top of the slider 307 is fixedly connected to the bottom of the adjacent limiting plate 308. Fastening bolts 309 are threaded into the inner walls of both sides of the movable groove 305. The side of the fastening bolt 309 away from the inner wall of the movable groove 305 abuts against the outer wall of the adjacent slider 307. The fastening bolt 309 is movably inserted into... Connected to the inner side of the adjacent traction spring 306, the limiting plate 308 can clamp the bottom of the A and B pillars under the elastic force of the traction spring 306. At the same time, the movable groove 305 can limit the movement of the slider 307, so that the limiting plate 308 remains stable during movement. The fastening bolt 309 passes through the inner wall of one side of the movable groove 305 and abuts against the outside of the adjacent slider 307, so that the limiting plate 308 can stably clamp and limit the bottom of the A and B pillars. At the same time, the limiting groove 303 can limit the rotation of the support plate 304, so that the support plate 304 remains stable during rotation.

[0039] When performing surface treatment on the A and B pillars of a car, multiple A and B pillars are placed inside the fixed housing 101, with their tops contacting the bottoms of three mounting plates 205 respectively. Then, the control panel 104 rotates three dual-axis motors 207, which in turn rotate two adjacent adjusting screws 208, causing two adjacent clamping plates 209 to move relative to or away from each other along the inner walls of adjacent mounting grooves 206. This allows the two clamping plates 209 to clamp and fix the tops of the A and B pillars. Then, the control panel 104 activates two hydraulic cylinders 302, which in turn move the movable plate 301 inside the fixed housing 101, causing the three support plates 304 to contact the bottoms of the three A and B pillars respectively. When the bottom of the B-pillar comes into contact, it will exert a pushing force on the two adjacent limiting plates 308, causing them to move in opposite directions along the inner wall of the adjacent movable groove 305 via the slider 307. This will cause the two traction springs 306 to contract. When the support plate 304 is in complete contact with the bottom of the A and B pillars, the limiting plates 308 can clamp and limit the bottom of the A and B pillars under the elastic force of the traction springs 306. Then, one of the fastening bolts 309 is threaded into the inner wall of one side of the movable groove 305 and abuts against the outer wall of one of the sliders 307. At the same time, the support plate 304 is rotated so that the other fastening bolt 309 can abut against the other slider 307, so that the two limiting plates 308 can stably clamp and limit the bottom of the A and B pillars.

[0040] Then, by rotating the sealing plate 103, it seals the opening side of the fixed housing 101. Then, via the control panel 104, the nozzle 106, equipped with a fan, sprays steel shot from inside the storage tank 105 onto the surfaces of pillars A and B for surface treatment. Simultaneously, via the control panel 104, the servo motor 202 operates, driving one of the rotating shafts 201 to rotate. Through the transmission action of the rotating wheel 203 and the drive belt 204, the other two rotating shafts 201 are driven to rotate, thereby rotating the three mounting plates 205. The device can rotate the three A and B pillars, which in turn can rotate the three support plates 304 within the confined groove 303. This allows the nozzle 106 to perform shot blasting on different positions on the surface of the A and B pillars. Simultaneously, excess steel shot can be collected into the storage box 105 through the recovery pipe 107. This enables the device to stably perform surface treatment on A and B pillars of different sizes, improving the efficiency of surface treatment of A and B pillars. This embodiment specifically solves the problem of low surface treatment efficiency of A and B pillars due to the inability to conveniently clamp and flip A and B pillars of different sizes in the prior art.

[0041] 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 shot blasting device for surface treatment of A and B pillars that is easy to clamp, comprising a shot blasting machine body (1), characterized in that, Also includes: The clamping mechanism (2) is located on the top inner side of the shot blasting machine body (1) and the support mechanism (3) is located on the bottom inner side of the shot blasting machine body (1); The clamping mechanism (2) includes three rotating shafts (201) that are equally spaced on the inner wall of the top of the shot blasting machine body (1). The bottom of each of the three rotating shafts (201) is fixedly mounted with a mounting plate (205). The inner wall of each of the three mounting plates (205) is provided with a dual-axis motor (207). The two output shafts of the dual-axis motor (207) are each equipped with an adjusting screw (208). The outer walls of the two adjusting screws (208) are threaded with clamping plates (209). The support mechanism (3) includes a movable plate (301), and three support plates (304) are equally spaced on the top of the movable plate (301). Limiting plates (308) are provided on both sides of the top of the support plates (304).

2. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 1, characterized in that: The shot blasting machine body (1) includes a fixed outer shell (101), with support seats (102) fixedly installed at both ends of the bottom of the fixed outer shell (101), and sealing plates (103) rotatably installed at both ends of the opening side of the fixed outer shell (101), and a control panel (104) fixedly installed on the outer wall of one end of the fixed outer shell (101).

3. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 2, characterized in that: A storage box (105) is fixedly installed on the bottom of one side of the outer wall of the fixed housing (101). Three nozzles (106) communicating with the inside of the fixed housing (101) are fixedly installed at equal intervals on the top of the storage box (105). A recycling pipe (107) communicating with the storage box (105) is fixedly installed on the bottom inner wall of the fixed housing (101).

4. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 2, characterized in that: The top inner wall of the fixed housing (101) is rotatably connected to three rotating shafts (201). The outer walls of two adjacent rotating shafts (201) are fixedly fitted with rotating wheels (203). A transmission belt (204) is provided between two adjacent rotating wheels (203). A servo motor (202) is fixedly installed at one end of the top of the fixed housing (101). The servo motor (202) is connected to one of the rotating shafts (201) through an output shaft.

5. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 1, characterized in that: The mounting plate (205) has a mounting groove (206) at the bottom. The middle of the inner wall of the mounting groove (206) is fixedly connected to the dual-axis motor (207). The inner walls on both sides of the mounting groove (206) are rotatably connected to the adjacent adjusting screw (208). The inner walls on both sides of the mounting groove (206) are movably connected to the top outer wall of the adjacent clamping plate (209).

6. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 2, characterized in that: Hydraulic cylinders (302) are fixedly installed at both ends of the bottom of the fixed housing (101). The piston rods of the two hydraulic cylinders (302) penetrate the inner wall of the bottom of the fixed housing (101) and are respectively connected to the two ends of the bottom of the movable plate (301). Three limiting grooves (303) are equally spaced on the inner wall of the movable plate (301).

7. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 6, characterized in that: The inner walls of the three limiting grooves (303) are rotatably connected to the three support plates (304). The inner walls of the three support plates (304) are provided with movable grooves (305). Traction springs (306) are fixedly installed on both sides of the inner wall of the movable grooves (305). A slider (307) is fixedly installed on the side of the traction spring (306) away from the inner wall of the limiting groove (303). The top of the slider (307) is fixedly connected to the bottom of the adjacent limiting plate (308).

8. The shot blasting device for surface treatment of A and B pillars with easy clamping as described in claim 7, characterized in that: Both sides of the movable groove (305) are threaded with fastening bolts (309). The side of the fastening bolt (309) away from the inner wall of the movable groove (305) is in contact with the outer wall of the adjacent slider (307). The fastening bolt (309) is movably inserted into the inner side of the adjacent traction spring (306).