Quickly detachable hot melt welding fixture

Abstract

The utility model belongs to welding fixture technical field, concretely relates to a hot melt welding fixture of quick assembly and disassembly, including bottom plate, the inside of bottom plate is equipped with the multiple evenly distributed jack -in, the inside sliding connection of jack -in has the insert cylinder, the upper end fixedly connected with slide cylinder of insert cylinder, be provided with the limit mechanism on the slide cylinder, the upper end fixedly connected with support of slide cylinder, the inside fixedly connected with the supporting plate of support, be provided with clamping mechanism on the support. The utility model through the screw ring and slide cylinder do screw thread movement, and further make slide pin drive connecting rod move, and further make the inclined block move and the contact of elastic sheet, and further make the insert block can slide in the insert cylinder, and further make the insert block can under the elastic effect of elastic sheet, make the insert block can and the coupling between bottom plate, and further make the insert cylinder can and the coupling between jack -in, and further make insert cylinder dismounting replacement position convenient, be convenient for to the work piece clamping of different size fixed.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a hot melt welding fixture that can be quickly assembled and disassembled. Background Technology

[0002] Utility model patent CN211942151U discloses a novel plastic thermomelting welding fixture, suitable for welding equipment equipped with non-contact infrared heat source heating or contact hot plate heating. From top to bottom, it includes an upper fixture, a middle plate, and a lower fixture. The lower fixture includes a base plate and a contour positioning body mounted on the base plate. The contour positioning body also has a contour clamping fixture. The contour positioning body is 3D printed and has embedded support columns made of aluminum, which support the middle of the contour clamping fixture. This device uses 3D printing to manufacture the contour positioning body, making the fixture design more flexible and convenient. Embedding aluminum support columns within the contour body changes the previous method of manufacturing all-aluminum contour fixtures, partially retaining aluminum structural components, ensuring heat dissipation and clamping stability, and minimizing the weight, processing difficulty, and cost of the entire fixture. However, this device has some shortcomings in use: it is not convenient to disassemble and replace workpieces of different sizes for clamping and fixing; also, excessive force during clamping can damage the workpiece. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a quick-assembly and disassembly hot melt welding fixture, which solves the problems of the device being inconvenient to disassemble and replace for clamping and fixing workpieces of different sizes, and the workpiece being damaged due to excessive clamping force during use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-assembly and disassembly hot melt welding fixture, comprising a base plate, the base plate having a plurality of evenly distributed insertion holes inside, an insertion cylinder slidably connected inside the insertion holes, a slide cylinder fixedly connected to the upper end of the insertion cylinder, a limit mechanism provided on the slide cylinder, a bracket fixedly connected to the upper end of the slide cylinder, a support plate fixedly connected inside the bracket, and a clamping mechanism provided on the bracket.

[0005] Preferably, the limiting mechanism includes a spring plate. A spring plate is fixedly connected inside the insert cylinder. A block is fixedly connected to the surface of the spring plate. A wedge block contacts the surface of the spring plate. A guide rod is slidably connected inside the wedge block. A baffle is fixedly connected to the lower end of the guide rod. A spring is provided on the outer side of the guide rod. A connecting rod is fixedly connected to the upper end of the wedge block. The connecting rod is slidably connected to the insert cylinder and to a sliding cylinder. A sliding pin is fixedly connected to the surface of the connecting rod. The sliding pin is slidably connected to the sliding cylinder. A threaded ring is threadedly connected to the outer side of the sliding cylinder. By rotating the threaded ring and the sliding cylinder, the sliding pin drives the connecting rod to move, which in turn moves the wedge block to contact the spring plate. This allows the block to slide inside the insert cylinder. Under the elastic action of the spring plate, the block can engage and disengage with the base plate, and the insert cylinder can engage and disengage with the insertion hole. This makes it convenient to disassemble and reposition the insert cylinder, facilitating the clamping and fixing of workpieces of different sizes.

[0006] Preferably, the insert block and the insert cylinder are slidably connected, and the insert block and the base plate are slidably connected. By setting the insert block, the distance between the insert cylinder and the base plate is limited.

[0007] Preferably, one end of the spring is fixedly connected to the inclined block, and the other end of the spring is fixedly connected to the baffle. By providing the spring, the inclined block can be easily reset.

[0008] Preferably, a protrusion is fixedly connected to the upper end of the sliding pin, and the protrusion is slidably connected to the threaded ring. By providing the protrusion, the friction between the sliding pin and the threaded ring is reduced.

[0009] Preferably, the clamping mechanism includes a cylinder. The cylinder is fixedly mounted on the upper middle part of the bracket. The cylinder rod passes through the bracket and is slidably connected to it. A sliding sleeve is slidably connected to the outer side of the cylinder rod. A pressure plate is fixedly connected to the lower end of the sliding sleeve. A compression spring is provided inside the sliding sleeve. One end of the compression spring is fixedly connected to the cylinder rod, and the other end is fixedly connected to the pressure plate. By driving the cylinder rod to extend and retract, the compression spring can elastically press down the pressure plate, thereby protectively clamping the workpiece. After the compression spring is compressed to its elastic limit, the workpiece is elastically clamped and fixed.

[0010] Preferably, a guide pin is fixedly connected to the surface of the cylinder rod, and the guide pin is slidably connected to the sliding sleeve. By providing the guide pin, relative rotation between the cylinder rod and the sliding sleeve is prevented.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses the rotating screw ring and sliding cylinder to make threaded movement, which in turn causes the sliding pin to drive the connecting rod to move, which in turn causes the inclined block to move and contact the spring plate, which in turn allows the insert block to slide inside the insert cylinder. Under the elastic action of the spring plate, the insert block can be engaged or disengaged from the base plate, which in turn allows the insert cylinder to be engaged or disengaged from the insertion hole. This makes it convenient to disassemble and replace the insert cylinder, and facilitates the clamping and fixing of workpieces of different sizes.

[0013] 2. This utility model uses a cylinder to drive the cylinder rod to extend and retract, which in turn allows the compression spring to elastically press down the pressure plate, thereby protecting the workpiece. After the compression spring is compressed to its elastic limit, the workpiece is elastically clamped and fixed. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A three-dimensional view of the local structure;

[0016] Figure 3 This utility model Figure 2 A cross-sectional view of the insert;

[0017] Figure 4 This utility model Figure 2 A three-dimensional view of the local structure.

[0018] In the diagram: 1. Base plate; 2. Insertion hole; 3. Insertion cylinder; 4. Slide cylinder; 5. Limiting mechanism; 6. Bracket; 7. Support plate; 8. Clamping mechanism; 51. Spring; 52. Insertion block; 53. Inclined block; 54. Guide rod; 55. Baffle; 56. Spring; 57. Connecting rod; 58. Sliding pin; 59. Threaded ring; 510. Protrusion; 81. Cylinder; 82. Sliding sleeve; 83. Guide pin; 84. Pressure plate; 85. Compression spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2A quick-assembly and disassembly hot melt welding fixture includes a base plate 1. The base plate 1 has multiple evenly distributed insertion holes 2 inside. Insert cylinders 3 are slidably connected inside the insertion holes 2. A slide cylinder 4 is fixedly connected to the upper end of the insertion cylinder 3. A limit mechanism 5 is provided on the slide cylinder 4. A bracket 6 is fixedly connected to the upper end of the slide cylinder 4. A support plate 7 is fixedly connected inside the bracket 6. A clamping mechanism 8 is provided on the bracket 6.

[0021] Please see Figures 1-3 The limiting mechanism 5 includes a spring piece 51. The spring piece 51 is fixedly connected inside the insert cylinder 3. An insert block 52 is fixedly connected to the surface of the spring piece 51. The insert block 52 is slidably connected to the insert cylinder 3 and to the base plate 1. The insert block 52 limits the movement between the insert cylinder 3 and the base plate 1. An inclined block 53 contacts the surface of the spring piece 51. A guide rod 54 is slidably connected inside the inclined block 53. A baffle 55 is fixedly connected to the lower end of the guide rod 54. A spring 56 is provided on the outer side of the guide rod 54. One end of the spring 56 is fixedly connected to the inclined block 53, and the other end is fixedly connected to the baffle 55. The spring 56 facilitates the reset of the inclined block 53. A connecting rod 57 is fixedly connected to the upper end of the inclined block 53. The connecting rod 57 is slidably connected to the insert cylinder 3 and to the slide cylinder 4. A sliding pin 58 is fixedly connected to the surface, and the sliding pin 58 and the sliding cylinder 4 are slidably connected. A screw ring 59 is threadedly connected to the outside of the sliding cylinder 4. A protrusion 510 is fixedly connected to the upper end of the sliding pin 58, and the protrusion 510 and the screw ring 59 are slidably connected. By setting the protrusion 510, the friction between the sliding pin 58 and the screw ring 59 is reduced. By rotating the screw ring 59 and the sliding cylinder 4 to make threaded movement, the sliding pin 58 drives the connecting rod 57 to move, which in turn causes the inclined block 53 to move and contact the spring piece 51, which in turn allows the insert block 52 to slide inside the insert cylinder 3. Under the elastic action of the spring piece 51, the insert block 52 can be engaged and disengaged from the base plate 1, which in turn allows the insert cylinder 3 to be engaged and disengaged from the insertion hole 2. This makes it convenient to disassemble and replace the insert cylinder 3, and facilitates the clamping and fixing of workpieces of different sizes.

[0022] Please see Figure 1 , Figure 2 , Figure 4The clamping mechanism 8 includes a cylinder 81. The cylinder 81 is fixedly installed in the middle of the upper end of the bracket 6. The cylinder rod of the cylinder 81 passes through the bracket 6 and is slidably connected to the bracket 6. A sliding sleeve 82 is slidably connected to the outer side of the cylinder rod of the cylinder 81. A guide pin 83 is fixedly connected to the surface of the cylinder rod of the cylinder 81. The guide pin 83 and the sliding sleeve 82 are slidably connected. By setting the guide pin 83, relative rotation between the cylinder rod and the sliding sleeve 82 is prevented. A pressure plate 84 is fixedly connected to the lower end of the sliding sleeve 82. A compression spring 85 is set inside the sliding sleeve 82. One end of the compression spring 85 is fixedly connected to the cylinder rod of the cylinder 81, and the other end of the compression spring 85 is fixedly connected to the pressure plate 84. The cylinder rod is driven to extend and retract by the cylinder 81, so that the compression spring 85 can elastically press down the pressure plate 84, thereby making the workpiece protectively clamped. After the compression spring 85 is compressed to its elastic limit, the workpiece is elastically clamped and fixed.

[0023] The specific implementation process of this utility model is as follows: In use, according to the workpiece size adjustment device, manually rotate the screw ring 59. The screw ring 59 rotates and the slide cylinder 4 makes a threaded movement, thereby causing the screw ring 59 to move upward, the spring 56 to extend, thereby causing the inclined block 53 to move upward and disengage from the spring piece 51, thereby causing the spring piece 51 to reset, thereby causing the insert block 52 to separate from the base plate 1, and causing the insert cylinder 3 to separate from the insertion hole 2. Insert the insert cylinder 3 into different insertion holes 2, rotate the screw ring 59 and the slide cylinder 4 to make a threaded movement, thereby causing the sliding pin 58 to drive the connecting rod 57 to move, thereby causing the inclined block 53 to move and contact the spring piece 51. This allows the insert block 52 to slide within the insert cylinder 3, and under the elastic action of the spring piece 51, the insert block 52 can engage and disengage with the base plate 1, and the insert cylinder 3 can engage and disengage with the insertion hole 2. This makes it easy to disassemble and replace the insert cylinder 3, facilitating the clamping and fixing of workpieces of different sizes. Then, the workpiece is placed on the support plate 7, and the cylinder 81 is activated. The cylinder 81 drives the cylinder rod to extend and retract, which causes the compression spring 85 to elastically press down the pressure plate 84, thereby protecting the workpiece. After the compression spring 85 is compressed to its elastic limit, the workpiece is elastically clamped and fixed.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-assembly and disassembly hot-melt welding fixture, comprising a base plate (1), characterized in that: The base plate (1) has a plurality of evenly distributed insertion holes (2) inside. Insert cylinders (3) are slidably connected inside the insertion holes (2). A slide cylinder (4) is fixedly connected to the upper end of the insert cylinder (3). A limit mechanism (5) is provided on the slide cylinder (4). A bracket (6) is fixedly connected to the upper end of the slide cylinder (4). A support plate (7) is fixedly connected inside the bracket (6). A clamping mechanism (8) is provided on the bracket (6).

2. The quick-assembly and disassembly hot-melt welding fixture according to claim 1, characterized in that: The limiting mechanism (5) includes a spring piece (51). The spring piece (51) is fixedly connected inside the insert (3). The insert block (52) is fixedly connected to the surface of the spring piece (51). The inclined block (53) contacts the surface of the spring piece (51). The guide rod (54) is slidably connected inside the inclined block (53). The lower end of the guide rod (54) is fixedly connected to a baffle (55). A spring (56) is provided on the outer side of the guide rod (54). A connecting rod (57) is fixedly connected to the upper end of the inclined block (53). The connecting rod (57) is slidably connected to the insert (3). The connecting rod (57) is slidably connected to the slide cylinder (4). A sliding pin (58) is fixedly connected to the surface of the connecting rod (57). The sliding pin (58) is slidably connected to the slide cylinder (4). A threaded ring (59) is threadedly connected to the outer side of the slide cylinder (4).

3. The quick-assembly and disassembly hot-melt welding fixture according to claim 2, characterized in that: The insert (52) and the insert cylinder (3) are slidably connected, and the insert (52) and the base plate (1) are slidably connected.

4. A quick-assembly and disassembly hot-melt welding fixture according to claim 2, characterized in that: One end of the spring (56) is fixedly connected to the inclined block (53), and the other end of the spring (56) is fixedly connected to the baffle (55).

5. A quick-assembly and disassembly hot-melt welding fixture according to claim 2, characterized in that: The upper end of the sliding pin (58) is fixedly connected to a protrusion (510), and the protrusion (510) and the screw ring (59) are slidably connected.

6. A quick-assembly and disassembly hot-melt welding fixture according to claim 1, characterized in that: The clamping mechanism (8) includes a cylinder (81). The cylinder (81) is fixedly installed in the middle of the upper end of the bracket (6). The cylinder rod of the cylinder (81) passes through the bracket (6) and is slidably connected to the bracket (6). A sliding sleeve (82) is slidably connected to the outside of the cylinder rod of the cylinder (81). A pressure plate (84) is fixedly connected to the lower end of the sliding sleeve (82). A compression spring (85) is provided inside the sliding sleeve (82). One end of the compression spring (85) is fixedly connected to the cylinder rod of the cylinder (81), and the other end of the compression spring (85) is fixedly connected to the pressure plate (84).

7. A quick-assembly and disassembly hot-melt welding fixture according to claim 6, characterized in that: A guide pin (83) is fixedly connected to the surface of the cylinder rod of the cylinder (81), and the guide pin (83) and the sliding sleeve (82) are slidably connected.

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