A clamping adjustment tool in a paint spraying process

Abstract

The utility model discloses a clamping adjustment frock in paint spraying process, including rotating assembly, be provided with clamping assembly on rotating assembly. The clamping assembly contains fixed cylinder, the inner wall rotation of fixed cylinder is connected with the lead screw, the outer wall of lead screw is installed with the sliding block through the nut, the outer wall of sliding block is installed with the mounting block that is symmetrical distribution, each mounting block all rotationally connected with push -pull rod, each push -pull rod is away from the one end of mounting block and all rotationally connected with the connecting block, and each connecting block one side all is installed with the clamping block, the drive mechanism for driving its rotation is equipped with below the lead screw, and the utility model discloses through clamping assembly, through the drive lead screw sliding block transmission and makes the clamping block flexible expansion, thereby can carry out the clamping to different diameter workpieces, make the work can adapt to different diameter tubular or cylindrical workpiece, and the general use and applicability of traditional frock have been improved.

Description

Technical Field

[0001] This utility model mainly relates to the field of spray painting technology, specifically a clamping and adjusting fixture in the spray painting process. Background Technology

[0002] In modern manufacturing, spray painting, as a key process for improving product appearance quality and enhancing surface protection, has been widely applied in many fields such as automobile manufacturing, machining, and home appliance production. As market demands for product appearance precision, coating uniformity, and production efficiency continue to rise, the performance of tooling equipment in the spray painting process is receiving increasing attention from the industry. Among these, clamping fixtures, as the core device for fixing workpieces during the spray painting process, directly affect the stability and final quality of the spray painting operation, especially in the common production step of surface painting of tubular or cylindrical workpieces, where their role is particularly crucial.

[0003] In actual production scenarios, tubular or cylindrical workpieces exhibit diverse specifications and significant differences in diameter, which places high demands on the versatility of clamping fixtures. However, currently used traditional clamping and adjustment fixtures have relatively fixed clamping structure dimensions, only adaptable to workpieces within a specific diameter range. When painting operations are required on tubular or cylindrical workpieces of different diameters, operators often need to spend a significant amount of time changing the corresponding clamping components, increasing the complexity of the operation and hindering the overall efficiency of the painting operation. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different approach. It primarily offers a clamping and adjusting fixture for the painting process, addressing the aforementioned background issue that in actual production, tubular or cylindrical workpieces exhibit diverse specifications and significant diameter variations, necessitating high versatility in the clamping fixture. However, traditional clamping and adjusting fixtures have fixed structural dimensions, only suitable for workpieces within a specific diameter range. Changing clamping components for workpieces of different diameters is time-consuming, increasing operational complexity and hindering painting efficiency.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A clamping and adjusting fixture for a painting process includes a rotating assembly, on which a clamping assembly is mounted.

[0007] The clamping assembly includes a fixed cylinder, a lead screw rotatably connected to the inner wall of the fixed cylinder, a slider mounted on the outer wall of the lead screw via a nut, symmetrically distributed mounting blocks mounted on the outer wall of the slider, a push-pull rod rotatably connected to each mounting block, a connecting block rotatably connected to the end of each push-pull rod away from the mounting block, and a clamping block mounted on one side of each connecting block; a drive mechanism for driving the lead screw to rotate is provided below the lead screw.

[0008] More preferably, a mounting plate is installed at the bottom of the fixed cylinder, and a second mounting cylinder is installed at the bottom of the mounting plate; a second worm gear reducer motor is installed at the center of the bottom of the mounting plate, and the output end of the second worm gear reducer motor is connected to the lead screw.

[0009] More preferably, the outer wall of the fixed cylinder has symmetrically distributed movable holes, and the mounting block is slidably installed in the movable holes; the slider is provided with a sliding block, and the inner wall of the fixed cylinder is provided with a sliding groove that matches the sliding block, so that the two form a sliding fit.

[0010] More preferably, a sliding rod is installed on the side of the connecting block away from the clamping block and near its upper and lower ends; a pressure sensor is provided between the clamping block and the connecting block; and a fixing tube is installed on the outer side of the fixing cylinder, and the fixing tube and the sliding rod form a sliding fit.

[0011] More preferably, the rotating assembly includes a first mounting cylinder, the bottom of which is fitted with a base plate; a first worm gear reducer motor is mounted inside the first mounting cylinder via a motor mounting bracket, and a rotating block is mounted at its output end. The rotating block is rotatably connected to the first mounting cylinder, and one end of the rotating block is connected to a second mounting cylinder.

[0012] More preferably, the mounting plate is equipped with symmetrically distributed protective covers, and multiple protective covers together form a frustum-shaped protective structure; a telescopic rubber protective tube is provided between the fixing cylinder and the clamping block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This clamping and adjusting fixture, through the clamping assembly and the threaded transmission of the lead screw and slider, drives the clamping block to flexibly extend outward or retract inward. With the real-time sensing of the pressure sensor between the connecting block and the clamping block, the clamping action automatically stops when the pressure reaches the preset value. It can adapt to tubular or cylindrical workpieces of different diameters and improves the versatility and applicability of the device compared with traditional clamping and adjusting fixtures.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the full cross-sectional structure of the rotating component of this utility model;

[0018] Figure 3 This is an enlarged structural schematic diagram of the clamping component of this utility model;

[0019] Figure 4 This is a fully enlarged cross-sectional view of the clamping assembly of this utility model.

[0020] Numbering on the map:

[0021] 1. Rotating assembly; 101. First mounting cylinder; 102. Base plate; 103. Motor mounting bracket; 104. First worm gear reducer motor; 105. Rotating block; 2. Clamping assembly; 201. Second mounting cylinder; 202. Mounting plate; 203. Fixed cylinder; 204. Second worm gear reducer motor; 205. Lead screw; 206. Slider; 207. Mounting block; 208. Push-pull rod; 209. Connecting block; 2010. Clamping block; 2011. Slide rod; 2012. Fixed tube; 3. Protective cover. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Please refer to the appendix carefully. Figure 1-4 A clamping and adjusting fixture for a painting process includes a rotating component 1, on which a clamping component 2 is provided.

[0025] The clamping assembly 2 includes a fixed cylinder 203, with a lead screw 205 rotatably connected to the inner wall of the fixed cylinder 203. A slider 206 is mounted on the outer wall of the lead screw 205 via a nut. The outer wall of the slider 206 is fitted with symmetrically distributed mounting blocks 207. Each mounting block 207 is rotatably connected to a push-pull rod 208. The end of each push-pull rod 208 away from the mounting block 207 is rotatably connected to a connecting block 209. A clamping block 2010 is mounted on one side of each connecting block 209, and an anti-slip rubber block is mounted on the clamping block 2010. A drive mechanism for driving the lead screw 205 to rotate is provided below the lead screw 205.

[0026] In this embodiment, as Figure 3 and Figure 4 As shown, a mounting plate 202 is installed at the bottom of the fixed cylinder 203, and a second mounting cylinder 201 is installed at the bottom of the mounting plate 202. A second worm gear reducer motor 204 is installed at the center of the bottom of the mounting plate 202, and the output end of the second worm gear reducer motor 204 is connected to the lead screw 205. When the second worm gear reducer motor 204 is started, it will drive the lead screw 205 to rotate. During the rotation of the lead screw 205, it can drive the slider 206 to move up and down. When the slider 206 moves, it will push or pull the connecting block 209 and the clamping block 2010 through the corresponding mounting block 207 and push-pull rod 208 to achieve outward extension or inward retraction, thereby clamping the tubular or cylindrical workpiece.

[0027] In this embodiment, as Figure 3 and Figure 4 As shown, the outer wall of the fixed cylinder 203 has symmetrically distributed movable holes, and the mounting block 207 is slidably installed in the movable holes; the slider 206 is provided with a sliding block, and the inner wall of the fixed cylinder 203 is provided with a sliding groove that matches the sliding block. The two form a sliding fit. When the slider 206 moves up or down, it can drive the mounting block 207 to move synchronously in the movable holes of the fixed cylinder 203. At the same time, the sliding block on the slider 206 will also slide smoothly in the sliding groove on the inner wall of the fixed cylinder 203. The stability of the slider 206 when moving up and down is improved through the guiding fit.

[0028] In this embodiment, as Figure 3 and Figure 4 As shown, sliding rods 2011 are installed on the side of the connecting block 209 away from the clamping block 2010 and near its upper and lower ends. A pressure sensor is provided between the clamping block 2010 and the connecting block 209, and the pressure sensor signal is connected to the control system of the drive mechanism. A fixing tube 2012 is installed on the outer side of the fixing cylinder 203, and the fixing tube 2012 and the sliding rod 2011 form a sliding fit. When the connecting block 209 and the clamping block 2010 extend outward or retract inward, the sliding rod 2011 will slide synchronously in the corresponding fixing tube 2012. The stability of the connecting block 209 and the clamping block 2010 during the extension and retraction action is improved through the guiding fit.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the rotating assembly 1 includes a first mounting cylinder 101, with a base plate 102 mounted on the bottom of the first mounting cylinder 101. Inside the first mounting cylinder 101, a first worm gear reducer motor 104 is mounted via a motor mounting bracket 103. A rotating block 105 is mounted on the output end of the first mounting cylinder 101. The rotating block 105 is rotatably connected to the first mounting cylinder 101, and one end of the rotating block 105 is connected to the second mounting cylinder 201. When the first worm gear reducer motor 104 starts, it drives the rotating block 105 to rotate, thereby driving the clamping assembly 2 and the workpiece clamped by it to rotate synchronously, realizing the on-demand adjustment of the workpiece angle. The rotating block 105 integrates a rotating conductive slip ring. Its stator end is connected to an external power supply line, and its rotor end is connected to the second worm gear reducer motor 204 via a wire to avoid cable entanglement during rotation and ensure that the second worm gear reducer motor 204 is continuously powered during workpiece rotation.

[0030] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, symmetrically distributed protective covers 3 are installed on the mounting plate 202, and multiple protective covers 3 together form a frustum-shaped protective structure; a telescopic rubber protective tube is provided between the fixed cylinder 203 and the clamping block 2010; the frustum-shaped protective structure can protect the rotating component 1, and the telescopic rubber protective tube can protect the telescopic mechanism on the clamping component 2, preventing external impurities from entering and affecting the operation of the mechanism. The telescopic rubber protective tube is made of fluororubber, and its two ends are sealed and fixed to the fixed cylinder 203 and the clamping block 2010 by clamps.

[0031] The specific operation process of this utility is as follows: First, after the tubular or cylindrical workpiece is placed on the outside of the clamping assembly 2, the second worm gear reducer motor 204 of the clamping assembly 2 is started through the PLC control system, which drives the lead screw 205 to rotate. The lead screw 205 drives the slider 206 to move along the sliding groove of the inner wall of the fixed cylinder 203 through the thread transmission, and at the same time drives the mounting block 207 to slide synchronously in the movable hole of the outer wall of the fixed cylinder 203.

[0032] The displacement of slider 206 is transmitted to push-pull rod 208 via mounting block 207, which then pushes connecting block 209 and clamping block 2010 to extend outward. When the pressure sensor between connecting block 209 and clamping block 2010 senses that the pressure has reached a preset value, the PLC control system will instruct the second worm gear reducer motor 204 to stop automatically, completing the stable clamping of the workpiece. During this extension and retraction process, the slide rod 2011 on connecting block 209 slides synchronously within the fixed tube 2012 outside the fixed cylinder 203, ensuring the stability of the clamping mechanism's operation.

[0033] If the workpiece angle needs to be adjusted, the first worm gear reducer motor 104 of the rotating assembly 1 can be started to drive the rotating block 105 to rotate on the first mounting cylinder 101. Through the connection between the rotating block 105 and the second mounting cylinder 201, the entire clamping assembly 2 and the clamped workpiece can be driven to rotate synchronously, so as to realize the adjustment of the workpiece angle as needed.

[0034] In addition, the symmetrical protective covers 3 on the mounting plate 202 form a frustum-shaped protective structure, providing overall protection for the rotating component 1; the telescopic rubber protective tube between the fixed cylinder 203 and the clamping block 2010 specifically protects the telescopic mechanism of the clamping component 2, ensuring stable operation of the mechanism. After the painting operation is completed, the PLC control system commands the second worm gear reducer motor 204 to start and drive the lead screw 205 to rotate in the opposite direction, causing the connecting block 209 and the clamping block 2010 to retract inward, completing the workpiece release action.

[0035] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A clamping and adjusting fixture for a spray painting process, comprising a rotating assembly (1), characterized in that: The rotating assembly (1) is provided with a clamping assembly (2); The clamping assembly (2) includes a fixed cylinder (203), a lead screw (205) is rotatably connected to the inner wall of the fixed cylinder (203), a slider (206) is installed on the outer wall of the lead screw (205) by a nut, and mounting blocks (207) are symmetrically distributed on the outer wall of the slider (206). Each mounting block (207) is rotatably connected to a push-pull rod (208), and a connecting block (209) is rotatably connected to the end of each push-pull rod (208) away from the mounting block (207). A clamping block (2010) is installed on one side of each connecting block (209). A driving mechanism for driving the lead screw (205) to rotate is provided below the lead screw (205).

2. The clamping and adjusting fixture in a spray painting process according to claim 1, characterized in that: The bottom of the fixed cylinder (203) is equipped with an mounting plate (202), and the bottom of the mounting plate (202) is equipped with a second mounting cylinder (201); a second worm gear reducer motor (204) is installed at the center of the bottom of the mounting plate (202), and the output end of the second worm gear reducer motor (204) is connected to the lead screw (205).

3. The clamping and adjusting fixture in a spray painting process according to claim 1, characterized in that: The outer wall of the fixed cylinder (203) is provided with symmetrically distributed movable holes, and the mounting block (207) is slidably installed in the movable holes; the slider (206) is provided with a sliding block, and the inner wall of the fixed cylinder (203) is provided with a sliding groove that matches the sliding block, and the two form a sliding fit.

4. The clamping and adjusting fixture in a painting process according to claim 1, characterized in that: The connecting block (209) is equipped with slide rods (2011) on the side away from the clamping block (2010) and near its upper and lower ends; a pressure sensor is provided between the clamping block (2010) and the connecting block (209); and a fixing tube (2012) is installed on the outer side of the fixing cylinder (203), and the fixing tube (2012) and the slide rod (2011) form a sliding fit.

5. The clamping and adjusting fixture in a painting process according to claim 2, characterized in that: The rotating assembly (1) includes a first mounting cylinder (101), and a base plate (102) is mounted on the bottom of the first mounting cylinder (101). A first worm gear reducer motor (104) is mounted inside the first mounting cylinder (101) through a motor mounting bracket (103), and a rotating block (105) is mounted on its output end. The rotating block (105) is rotatably connected to the first mounting cylinder (101), and one end of the rotating block (105) is connected to the second mounting cylinder (201).

6. The clamping and adjusting fixture in a painting process according to claim 2, characterized in that: The mounting plate (202) is equipped with symmetrically distributed protective covers (3), and multiple protective covers (3) together form a frustum-shaped protective structure; a telescopic rubber protective tube is provided between the fixing cylinder (203) and the clamping block (2010).

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