Assembling workbench with adjusting structure

Abstract

The utility model relates to the technical field of special devices for manufacturing PTC (Positive Temperature Coefficient) heaters, in particular to an assembly workbench with an adjusting structure. The assembling workbench with the adjusting structure comprises a workbench body, one side table top of the workbench body is a flat table top, a supporting frame is arranged on the other side table top, a disc is arranged at the bottom of the supporting frame, and the disc is arranged on the table top of the workbench body in a rotating and embedded mode. And the adjusting and fixing mechanism is a clamping mechanism which is arranged at the top of the supporting frame and can adjust and fix the PTC heaters of different specifications. According to the utility model, the movement of the clamping plate is controlled by the hand wheel, the sliding block is controlled by the chute and the spring to move towards the PTC heater to be assembled, and when the pressing plate is in contact with the PTC heater, the clamping plate continues to move, the spring is only compressed, and the pressing plate does not move, so that larger clamping force is formed, and the PTC heater in assembly is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of special devices for manufacturing PTC heaters, in particular to an assembly workbench with an adjustment structure. Background Art

[0002] PTC heating element, also known as PTC heater, is composed of PTC ceramic heating element and aluminum tube. PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power saving electric heater.

[0003] PTC electric heaters are mostly composed of PTC heating elements, corrugated spring sheets, etc., and are shaped like a cube. To ensure work efficiency, tools are needed during assembly to arrange and combine the PTC heating elements and corrugated spring sheets, and then install them into the casing. Especially for some production lines, after the repair of defective products is completed, they usually need to be reassembled together. Although today's assembly workbench can meet the assembly requirements of general PTC heaters, when more than one type of PTC electric heaters need to be assembled, and the shapes and sizes are different, the adjustment of the workbench will consume more time.

[0004] Therefore, it is necessary to redesign an assembly workbench with an adjustment mechanism that can ignore the influence of the sizes of different types of PTC heaters. Utility Model Content

[0005] In order to overcome the disadvantage that the adjustment of the existing workbench will consume a lot of time when there is more than one type of PTC electric heaters that need to be assembled with different shapes and sizes, the technical problem to be solved is: to provide a device that can automatically adjust the clamping and fixing position according to different PTC electric heater models and sizes, so as to facilitate the staff to complete the assembly of the PTC electric heater.

[0006] The technical solution of the utility model is: an assembly workbench with an adjustment structure, comprising: a workbench and a support frame, wherein a table top on one side of the workbench is a flat table top, a table top on one side is provided with a support frame, a disc is provided at the bottom of the support frame, and the disc is rotatably embedded in the workbench table top; an adjustment fixing mechanism, the adjustment fixing mechanism is provided at the top of the support frame and is a clamping mechanism capable of adjusting and fixing PTC heaters of different specifications.

[0007] As a preferred technical solution of the utility model, the adjustment and fixing mechanism specifically also includes: a clamp base, a clamp base is provided on the top of the support frame; a clamp plate, a long groove is opened at the lower part of the clamp plate, and two mutually symmetrical clamp plates are symmetrically arranged on the clamp base through the long groove sliding; a screw rod, two screw rods are provided at the bottom of the clamp base, both screw rods are matched with the threads at the bottom of the clamp plate, and a handwheel is installed at the end of one of the screw rods; a pulley group, a pulley group is provided between the two screw rods; a strip hole, a strip hole is opened in the middle of the two clamp plates, and the inner wall of the strip hole is symmetrically opened with oblique grooves up and down; a slider, the strip holes of the two clamp plates A slider is provided inside the sliding type; a limit block, a limit block is provided at the top and bottom of the slider, and the two limit blocks on the slider are in sliding contact with the inclined groove of the adjacent strip hole; a connecting plate, a connecting plate is provided on the side where the two sliders are close to each other; a pressure block, a pressure block is slidably provided between the two connecting plates by means of the limit block groove cooperation; a guide tube, a guide tube is provided on the side of the pressure block away from the heater when the heater is fixed, and the two ends of the guide tube are respectively facing the two clamping plates; a spring, elastic parts are provided at both ends of the guide tube close to the two clamping blocks, and the ends of the two elastic parts away from the guide tube are respectively connected to the adjacent connecting plates.

[0008] As a preferred technical solution of the utility model, it also includes: a slideway, a slideway is opened inward on the front side of the workbench, and the slideway extends to the bottom of the support frame; a fixing pin, a fixing pin is slidably provided in the slideway; a turntable groove, a plurality of turntable grooves are evenly spaced in an annular manner on the side surface of the circular ring part of the support frame, and the fixing pin is in contact with the turntable groove.

[0009] As a preferred technical solution of the utility model, it also includes: a buffer pad, a buffer pad is provided at the middle position of the side of the clamp base that contacts the heater when the heater is fixed.

[0010] As a preferred technical solution of the utility model, it also includes: an air pump, an air pump suction port is provided in the middle part of the guide tube, two air pumps are located in the guide tube, tightly fit, fixed and symmetrically placed, and the air outlet direction is outward; an air block, which tightly and slidingly fits the contact part of the guide tube and is located on both sides of the guide tube.

[0011] The utility model has the following advantages: 1. In the utility model, the movement of the splint is controlled by a hand wheel, the compression of the spring is controlled by the movement of the splint, the compression of the spring is released through the inclined groove and the slider is controlled to move toward the PTC heater to be assembled, the connecting block is controlled by the slider to control the movement of the pressure plate, when the pressure plate cannot move, the splint continues to move, the spring is only compressed, and the pressure plate does not move, forming a larger clamping force, and the splint still has room to move until it fits the surface of the PTC heater being assembled, so that the PTC heater being assembled can be fixed by a hand wheel control, the operation is simple and convenient, and the workbench can be directly used to assemble various types of PTC heaters.

[0012] 2. In order to avoid the influence of the larger table surface on one side of the workbench and ensure the smooth assembly of the PCT heater, the workbench disc part embedded on the support frame can be adjusted to rotate to the appropriate position to ensure that the staff can assemble without being affected by the table surface, and then the disc part can be prevented from rotating by inserting the fixing pin into the turntable slot, ensuring that the fixed adjustment mechanism will not rotate suddenly during the assembly and cause accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a partial three-dimensional structure explosion diagram of the utility model.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamp base, clamping plate and pressing block of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the clamping plate, screw rod and pulley assembly of the utility model.

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting block, the left and right parts of the clamp and the sliding block of the utility model.

[0018] Figure 6 It is an exploded view of the three-dimensional structure of the middle part of the pressing plate, the pressing block and the spring of the utility model.

[0019] Figure 7 It is a partial three-dimensional structural schematic diagram of the utility model.

[0020] Figure 8 It is a three-dimensional structural schematic diagram of the splint of the utility model.

[0021] Fig. 9 It is a partial three-dimensional structural cross-sectional schematic diagram of the utility model.

[0022] Fig.10 It is a cross-sectional view of the three-dimensional structure of the air guide tube of the utility model.

[0023] Marked in the figure: 1-workbench, 2-support frame, 201-adjusting and fixing mechanism, 3-clamp base, 4-clamp plate, 5-screw, 6-pulley group, 7-bar hole, 8-slider, 9-bevel groove, 10-limit block, 11-connecting plate, 12-pressure block, 13-guide tube, 14-spring, 15-slide, 16-fixing pin, 17-turntable groove, 18-buffer pad, 19-air block, 20-air pump. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the protection scope and application scope of the present invention are not limited.

[0025] Example 1

[0026] like Figures 1 to 8 As shown, the utility model provides an assembly workbench with an adjustment structure, which specifically includes a workbench 1, a support frame 2 and an adjustment and fixing mechanism 201;

[0027] Among them, one side of the workbench 1 is a flat surface, and one side of the workbench is provided with a support frame 2, and a disc is provided at the bottom of the support frame 2. The disc is rotatably embedded on the workbench 1 surface for stabilizing the security PTC heater;

[0028] The adjusting and fixing mechanism 201 is arranged on the top of the supporting frame 2 and is used for adjusting, fixing and clamping PTC heaters of different specifications.

[0029] The adjusting and fixing mechanism 201 specifically includes a clamp base 3, a clamp plate 4, a screw rod 5, a pulley set 6, a strip hole 7, a slider 8, a limit block 10, a connecting plate 11, a pressure block 12, a guide tube 13 and a spring 14;

[0030] Among them, a clamp base 3 is provided on the top of the support frame 2, and a long groove is opened at the lower part of the clamp plate 4. Two symmetrical clamp plates 4 are slidably symmetrically arranged on the clamp base 3 through the long groove. Two screw rods 5 are provided at the bottom of the clamp base 3. Both screw rods 5 are matched with the bottom threads of the clamp plates 4. A handwheel is installed at the end of one of the screw rods 5, and a pulley group 6 is provided between the two screw rods 5 for horizontally clamping and fixing the PTC heater.

[0031] Among them, a strip hole 7 is opened in the middle of the two clamping plates 4, and an oblique groove 9 is opened symmetrically on the inner wall of the strip hole 7 from top to bottom. Slide blocks 8 are slidably provided in the strip holes 7 of the two clamping plates 4, and limit blocks 10 are provided at the top and bottom of the slider 8. The two limit blocks 10 on the slider 8 are both in sliding contact with the oblique groove 9 of the adjacent strip hole 7. A connecting plate 11 is provided on the side where the two sliders 8 are close to each other, and a pressing block 12 is slidably provided between the two connecting plates 11 by means of the groove cooperation of the limit block 10. A guide tube 13 is provided on the pressing block 12 on the side away from the heater when fixing the heater, and the two ends of the guide tube 13 are respectively facing the two clamping plates 4. Elastic parts are provided in the two ends of the guide tube 13 close to the two clamping blocks, and the ends of the two elastic parts away from the guide tube 13 are respectively connected to the adjacent connecting plates 11, so as to clamp and fix the PTC heater longitudinally.

[0032] In the present invention, when the various components of the PTC heater are assembled by using a fixed clamping mechanism at one end of the workbench 1, the staff can use the adjusting fixing mechanism 201 to clamp and fix the PTC electric heaters to be assembled according to various models only by using the hand wheel. The operation is simple and quick. In this process, before using the fixed clamping mechanism to clamp the PTC electric heater to be assembled, a certain area needs to be reserved at the assembly position. The screw rod 5 is rotated forward by the hand wheel, and the pulley group 6 between the screw rods 5 is driven. The two screw rods 5 move synchronously. The threads at both ends of the screw rods 5 are symmetrical, so that when the screw rod 5 rotates, the two clamps 4 are driven to move synchronously through the long groove at the bottom of the clamp 4 and the clamp base 3 in a direction perpendicular to the clamp 4 and opposite to each other. The distance between the clamps 4 increases, and the pressure plate is slidably connected with the two connecting blocks. The pressure plate is moved away from the area where the PTC heater components are placed by hand. After the PTC heater is placed, the hand wheel is turned to reverse. The splint 4 moves in a direction perpendicular to and relative to the splint 4, so that the spacing between the splints 4 is reduced. Since the angle between the inclined groove 9 and the splint 4 is large, when the lateral compression of the spring 14 is released, the longitudinal movement of the splint 4 will be large. Therefore, the hand wheel is slightly reversed first, and the splint 4 moves slowly to fit the PTC heater. After fitting, the hand wheel is turned. Due to the angle of the inclined groove 9, the elastic force of the spring 14 is converted into the clamping force of the pressure plate on the PTC heater, and gradually increases as the splint 4 approaches, until the splints 4 at both ends are close to the heater and stick to the surface of the PTC heater. In this way, the clamping and fixing of the PTC heater is completed. In this way, no matter what the model and size of the PTC heater is, it can be clamped and fixed with this set of devices, and then assembly work is carried out. After the assembly work is completed, the staff will turn the hand wheel forward, first let the splint 4 away from the PTC electric heater, then push the pressure plate away, and take out the assembled PTC heater.

[0033] Example 2

[0034] like Figure 2 and Fig. 9 As shown, on the basis of Example 1, it specifically includes a slide 15 and a fixing pin 16. A slide 15 is opened inward on the front side of the workbench 1, and the slide 15 extends to the bottom of the support frame 2. A fixing pin 16 is slidably provided in the slide 15. A plurality of turntable grooves 17 are evenly spaced in an annular manner on the side surface of the circular ring part of the support frame 2, and the fixing pin 16 is in contact with and cooperates with the turntable grooves 17.

[0035] During assembly, the staff can rotate and fix the fixing clamping mechanism of the workbench 1, and when the pin in the slide 15 is moved away from the turntable slot 17, the disc of the support frame 2 can rotate freely to realize the rotation function, and the PTC heater to be assembled can be rotated to a suitable position for the convenience of assembly by the workers. After rotating to a suitable position, when it needs to be fixed, it only needs to insert the pin into the turntable slot 17 to achieve fixation, thereby avoiding the influence of the staff's operation on the larger table surface on one side of the workbench 1. In addition, when the staff needs to conduct a detailed inspection of the clamped PTC heater, this function can be used for rotation.

[0036] like Figure 7 As shown, based on the embodiment 1, a buffer pad 18 is specifically included. The buffer pad 18 is provided at the middle position of the side of the fixture base 3 that contacts the heater when the heater is fixed.

[0037] The buffer pad 18 is made of a material with a certain thickness and elasticity, which can not only reduce the impact on the PTC heater when the pressure plate is clamped and assembled, but also fit well when the clamped side is a curved surface to prevent damage to the shell.

[0038] like Fig.10 As shown, on the basis of Example 1, it specifically includes an air pump 20 and an air block 19, the middle part of the guide tube 13 has an air intake port of the air pump 20, the two air pumps 20 are located in the guide tube 13, tightly fit, fixed and symmetrically placed, with the air outlet direction facing outward, tightly and slidingly fit with the contact part of the guide tube 13 and located on both sides of the guide tube 13.

[0039] Since the clamping force of the pressure plate is affected by the distance of the clamping plate 4, when encountering a wider PTC heater, the clamping force will be insufficient. Air is added to a closed space through the air pump 20, and the air block 19, the guide tube 13, and the air pump 20 form a closed space. The air pump 20 releases air into the closed space, generating a greater air pressure to move the air block 19. The air block 19 contacts the spring 14, and then changes the compression degree of the spring 14, thereby adjusting the force of the pressure plate and the connecting plate 11 in the fixing mechanism 201 to press against the PTC heater in assembly.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An assembly workbench with an adjustment structure, characterized in that: include: A workbench (1) and a support frame (2), wherein one side of the workbench (1) has a flat surface, and one side of the workbench (1) has a support frame (2), and a disc is provided at the bottom of the support frame (2), and the disc is rotatably embedded in the workbench (1) surface; The adjusting and fixing mechanism (201) is a clamping mechanism arranged on the top of the support frame (2) and capable of adjusting and fixing PTC heaters of different specifications.

2. An assembly workbench with an adjustment structure as claimed in claim 1, characterized in that: The adjusting and fixing mechanism (201) specifically further comprises: A clamp base (3), the top of the support frame (2) is provided with a clamp base (3); A clamping plate (4), wherein a long groove is formed at the lower part of the clamping plate (4), and two mutually symmetrical clamping plates (4) are symmetrically arranged on the clamp base (3) through the long groove in a sliding manner; Screw rod (5), two screw rods (5) are arranged at the bottom of the clamp base (3), both screw rods (5) are matched with the thread at the bottom of the clamp plate (4), and a hand wheel is installed at the end of one of the screw rods (5); A pulley group (6), wherein a pulley group (6) is provided between the two screw rods (5); A strip hole (7) is provided in the middle of each of the two clamping plates (4), and an inclined groove (9) is provided symmetrically on the inner wall of the strip hole (7); Slide blocks (8), the strip holes (7) of the two clamping plates (4) are both slidably provided with slide blocks (8); Limit blocks (10), the top and bottom of the slider (8) are both provided with limit blocks (10), and the two limit blocks (10) on the slider (8) are both in sliding contact with the inclined groove (9) of the adjacent strip hole (7); A connecting plate (11), wherein the two sliding blocks (8) are provided with a connecting plate (11) on the sides close to each other; A pressing block (12) is slidably provided between the two connecting plates (11) by means of cooperation with the groove of the limiting block (10); A guide tube (13), a guide tube (13) is provided on the side of the pressing block (12) away from the heater when the heater is fixed, and two ends of the guide tube (13) are respectively directed toward the two clamping plates (4); The spring (14) and the two ends of the guide tube (13) close to the two clamping blocks are both provided with elastic members, and the ends of the two elastic members away from the guide tube (13) are respectively connected to the adjacent connecting plates (11).

3. An assembly workbench with an adjustment structure as claimed in claim 2, characterized in that: Also includes: A slideway (15) is provided inwardly on the front side of the workbench (1), and the slideway (15) extends to the bottom of the support frame (2); a fixing pin (16) is slidably provided in the slideway (15); and a turntable groove (17) is provided with a plurality of turntable grooves (17) at even intervals on the side surface of the annular portion of the support frame (2), and the fixing pin (16) is in contact with and cooperates with the turntable grooves (17).

4. An assembly workbench with an adjustment structure as claimed in claim 3, characterized in that: Also includes: A buffer pad (18) is provided inside the clamp base (3) at a middle position on a side that contacts the heater when the heater is fixed.

5. An assembly workbench with an adjustment structure as claimed in claim 4, characterized in that: Also includes: The air pump (20) has an air suction port in the middle of the guide tube (13). The two air pumps (20) are tightly fitted and symmetrically placed in the guide tube (13), with the air outlet facing outwards. The gas block (19) is tightly slidably fitted with the contact portion of the guide tube (13) and is located on both sides of the guide tube (13).

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