Tool clamp for PTC heating pipe production

Abstract

The utility model discloses a work fixture used for PTC heating pipe production, and specifically relates to the PTC heater technology field, the work fixture comprises two symmetrically arranged supporting members and a plurality of ceramic heating sheets, the two sides of the top end of a connecting member far away from the axis are symmetrically provided with threaded rods, and the threaded rods are connected with the supporting members. Multiple sets of clamping plates which are symmetrically arranged in pairs are slidably mounted on the two threaded rods, multiple threaded screwing discs are mounted on the two threaded rods in a threaded mode, and the opposite faces of the multiple threaded screwing discs abut against the clamping plates which are symmetrically arranged in pairs; the end faces, in the height direction, of the two supporting pieces are each provided with a first penetrating sliding groove, and a smoothing piece slides on the two first sliding grooves. According to the tool clamp used for PTC heating pipe production, the multiple sets of clamping plates are arranged to clamp ceramic heating pieces respectively, the multiple threaded screwing discs abut against and limit the clamping plates respectively, and therefore the phenomenon that the multiple ceramic heating pieces are stacked mutually and heated unevenly in the heating process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC heaters, in particular to a tooling fixture used for producing PTC heating tubes. Background Art

[0002] PTC heater is a kind of heater composed of PTC ceramic heating element and aluminum tube. Its working principle is to use the positive temperature coefficient characteristics of PTC material, and the resistance value increases rapidly when the temperature rises, thereby achieving self-regulation and limiting the risk of overheating. PTC heater has the characteristics of overall heating, avoiding open flames, temperature self-limiting, high flexibility, strong applicability, safety and reliability.

[0003] The Chinese patent with the authorization announcement number CN217703147U discloses a fixture for the production of PTC heaters, including a fixture body and a leveling plate, a bottom plate is fixed to the inner wall of the bottom of the fixture body by bolts, and an adjustment bolt is threadedly connected to the outer wall of the top of the fixture body, a clamp is slidably connected to the inside of the fixture body, and the bottom end of the adjustment bolt is rotatably connected to the outer wall of the top of the clamp through a bearing, a guide rod is fixed to the outer wall of the top of the clamp by bolts, and a guide hole is opened on the top of the fixture body. The utility model can drive the clamp to move by rotating the adjustment bolt, and the position of the clamp can be adjusted. It can clamp and fix different types of ceramic heating plates in cooperation with the bottom plate, and has a very wide range of uses. The sliding leveling plate can move and level the ceramic heating plate, making the ceramic heating plate more firmly clamped and fixed, and the leveling plate can slide and will not block the baking equipment from baking the ceramic heating plate.

[0004] When the above device is actually used, when multiple ceramic heating sheets are clamped, they will overlap with each other. During the heating process, the ceramic heating sheets overlap with each other, resulting in the ceramic heating sheets in the middle part being blocked and unable to fully receive heat, while the ceramic heating sheets on the outside may be overheated, which makes the entire heating process uneven and affects the heating effect and quality. In view of this, we propose a tooling fixture for the production of PTC heating tubes to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a tooling fixture for the production of PTC heating tubes, which can effectively solve the above problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A fixture for producing PTC heating tubes, comprising two symmetrically arranged support members and a plurality of ceramic heating sheets.

[0008] The two support members are both Z-shaped, and the bottom ends of the two support members are fixedly connected by a connecting member. The top of the connecting member is symmetrically installed with threaded rods on both sides away from the axis of the connecting member. Multiple groups of clamping plates symmetrically arranged in pairs are slidably installed on the two threaded rods, and each of the ceramic heating plates is clamped between the two clamping plates.

[0009] A plurality of threaded discs are threadedly mounted on the two threaded rods, and the opposite surfaces of the plurality of threaded discs support the symmetrical clamping plates in pairs;

[0010] A penetrating slide groove is provided on the end surface of the two support members along the height direction, and a smoothing member is slidably arranged on the two slide grooves.

[0011] Preferably, the smoothing member comprises a smoothing frame 1 and a smoothing frame 2, and two penetrating slide grooves 2 are symmetrically provided on the smoothing frame 1 on both sides close to the smoothing frame 2;

[0012] Sliding buttons that slide with the second slide groove are fixedly installed on both sides of the second smoothing frame close to the first smoothing frame.

[0013] Preferably, handles are fixedly mounted on the end surfaces of the smoothing frame 1 and the smoothing frame 2 that are away from each other.

[0014] Preferably, the matrix on the clamping plate is provided with penetrating through holes.

[0015] Preferably, each of the threaded screwing discs has screwing grooves in an annular array on its outer surface.

[0016] Preferably, the top ends of the two threaded rods are provided with connecting holes, the inner end walls of the connecting holes are provided with limiting ring grooves, a rotating rod is rotatably installed in the connecting holes, and a limiting ring block which is limited by the limiting ring groove is fixedly installed on the outer surface of the rotating rod;

[0017] A hanging block is fixedly mounted on the limiting ring block.

[0018] Preferably, a penetrating fixing groove is provided on one side of the bottom of the two supporting members, and a penetrating limiting groove is provided on the inner bottom surface of the fixing groove, and the limiting groove is adapted to the hanging block.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. In the utility model, multiple groups of clamping plates are provided to clamp the ceramic heating plates respectively, and multiple threaded screw discs respectively hold each group of clamping plates in a position, so as to prevent the phenomenon of uneven heating outside and inside when multiple ceramic heating plates are overlapped and heated.

[0021] 2. In the utility model, hanging blocks are rotatably mounted on the two threaded rods, and limiting grooves are provided at the bottoms of the two supporting members, so that the hanging blocks can be hung on the limiting grooves. In this way, multiple devices can be mutually added, and the size of the clamp can be adjusted according to the size of the oven, which is more flexible in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the connection structure between two supporting members and a connecting member in the utility model;

[0024] Figure 3 It is a schematic diagram of the split structure of the two clamping plates and the ceramic heating plate in the utility model;

[0025] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of the cross-section split at A in the middle;

[0026] Figure 5 It is a schematic diagram of the split structure of the two smoothing frames in the utility model.

[0027] In the figure: 1. support member; 11. slide groove 1; 12. fixing groove; 121. limit groove; 2. connecting member; 3. ceramic heating plate; 4. threaded rod; 41. connecting hole; 42. limit ring groove; 43. rotating rod; 44. limit ring block; 45. hanging block; 5. clamping plate; 51. through hole; 6. smoothing member; 61. smoothing frame 1; 611. slide groove 2; 62. smoothing frame 2; 621. slide button; 63. handle; 7. threaded screw disk; 71. screw groove. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figure 1-Figure 5 As shown, a fixture for the production of PTC heating tubes includes two symmetrically arranged support members 1 and a plurality of ceramic heating plates 3. The two support members 1 are both Z-shaped, and the bottom ends of the two support members 1 are fixedly connected by a connecting member 2. The top ends of the connecting member 2 are symmetrically installed with threaded rods 4 on both sides away from the axis thereof, and a plurality of groups of clamping plates 5 symmetrically arranged in pairs are slidably installed on the two threaded rods 4, and each ceramic heating plate 3 is clamped between the two clamping plates 5; a plurality of threaded screwing discs 7 are threadedly installed on the two threaded rods 4, and the opposite surfaces of the plurality of threaded screwing discs 7 hold the two symmetrical clamping plates 5;

[0030] By arranging multiple groups of two-way symmetrically distributed clamping plates 5 to be slidably installed on two threaded rods 4, multiple threaded screw disks 7 are respectively threadedly installed on the two threaded rods 4. The threaded screw disks 7 are screwed to push the two clamping plates 5 closer to each other so as to clamp the ceramic heating plate 3. In this way, the multiple groups of clamping plates 5 clamp the ceramic heating plate 3 respectively to prevent the ceramic heating plates 3 from being overlapped with each other and unevenly heated outside and inside during heating.

[0031] Furthermore, a through slide groove 11 is provided on the end surface of the two support members 1 along the height direction thereof, and a smoothing member 6 slides on the two slide grooves 11, and the smoothing member 6 includes a smoothing frame 1 61 and a smoothing frame 2 62, and a through slide groove 2 611 is symmetrically provided on both sides of the smoothing frame 1 61 near the smoothing frame 2 62, and a sliding button 621 sliding with the slide groove 2 611 is fixedly installed on both sides of the smoothing frame 2 62 near the smoothing frame 1 61;

[0032] The ceramic heating plate 3 is smoothed by setting a smoothing member 6. Since the ceramic heating plate 3 has different sizes, the distance between the smoothing frame 1 61 and the smoothing frame 2 62 can be adjusted by setting the smoothing frame 1 61 and the smoothing frame 2 62 to slide relative to each other through the slide groove 2 611 and the slide button 621, so as to adapt to the ceramic heating plates 3 of different sizes.

[0033] Furthermore, handles 63 are fixedly mounted on the end surfaces of the smoothing frame 1 61 and the smoothing frame 2 62 that are away from each other;

[0034] The handle 63 is provided to facilitate the user to pull the smoothing frame 1 61 and the smoothing frame 2 62 .

[0035] Furthermore, the matrix of the clamping plate 5 is provided with penetrating through holes 51

[0036] The through holes 51 formed in the matrix array on the clamping plate 5 prevent the clamping plate 5 from blocking the ceramic heating plate 3 during heating, thereby avoiding uneven heating.

[0037] Furthermore, each threaded screwing disc 7 has screwing grooves 71 formed in an annular array on its outer surface;

[0038] The threaded screw disc 7 is provided with a ring-shaped array of screw grooves 71, so that the threaded screw disc 7 can be easily used to screw.

[0039] Furthermore, the top ends of the two threaded rods 4 are provided with connecting holes 41, the inner end wall of the connecting holes 41 is provided with a limiting ring groove 42, a rotating rod 43 is rotatably installed in the connecting hole 41, a limiting ring block 44 which is limited by the limiting ring groove 42 is fixedly installed on the outer surface of the rotating rod 43, a hanging block 45 is fixedly installed on the limiting ring block 44, a penetrating fixing groove 12 is provided on one side of the bottom of the two supporting members 1, a penetrating limiting groove 121 is provided on the inner bottom surface of the fixing groove 12, and the limiting groove 121 is adapted to the hanging block 45;

[0040] The two threaded rods 4 are rotatably mounted with hanging blocks 45, and the bottoms of the two support members 1 are provided with limiting grooves 121, so that the hanging blocks 45 can be hung on the limiting grooves 121, so that multiple devices can be mutually added, and the size of the clamp can be adjusted according to the size of the oven, which is more flexible when used.

[0041] The working principle of the utility model is as follows: the threaded screw discs 7 are screwed respectively, and the threaded screw discs 7 are pressed against the two clamping plates 5 to move closer to each other, thereby clamping the ceramic heating sheet 3, and the handle 63 is held to slide the smoothing frame 1 61 and the smoothing frame 2 62 up and down to smooth the ceramic heating sheet 3, and the smoothing frame 1 61 and the smoothing frame 2 62 are pulled outward to move them away from each other, thereby adapting to ceramic heating sheets 3 of different sizes;

[0042] In order to adjust the number of clamps according to the size of the oven, the hanging block 45 on the first device is inserted into the limiting groove 121 at the bottom of the second device, and the hanging block 45 is rotated so that the first device is hung on the bottom of the second device to achieve the function of adding sections.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixture for producing PTC heating tubes, comprising two symmetrically arranged support members (1) and a plurality of ceramic heating sheets (3), characterized in that: The two support members (1) are both Z-shaped, and the bottom ends of the two support members (1) are fixedly connected via a connecting member (2). The top ends of the connecting members (2) are symmetrically mounted with threaded rods (4) on both sides away from the axis of the connecting members (2). A plurality of groups of clamping plates (5) symmetrically arranged in pairs are slidably mounted on the two threaded rods (4), and each of the ceramic heating plates (3) is clamped between the two clamping plates (5). A plurality of threaded discs (7) are threadedly mounted on the two threaded rods (4), and the opposite surfaces of the plurality of threaded discs (7) support the symmetrical clamping plates (5) in pairs; A penetrating slide groove (11) is provided on the end surface of the two support members (1) along the height direction thereof, and a smoothing member (6) is slidably provided on the two slide grooves (11).

2. The fixture for producing PTC heating tubes according to claim 1 is characterized in that: The smoothing member (6) comprises a smoothing frame 1 (61) and a smoothing frame 2 (62), and a penetrating sliding groove 2 (611) is symmetrically provided on both sides of the smoothing frame 1 (61) close to the smoothing frame 2 (62); Sliding buttons (621) that slide with the second slide groove (611) are fixedly installed on both sides of the smoothing frame (62) close to the smoothing frame (61).

3. The fixture for producing PTC heating tubes according to claim 2 is characterized in that: Handles (63) are fixedly mounted on the end surfaces of the smoothing frame 1 (61) and the smoothing frame 2 (62) that are away from each other.

4. The fixture for producing PTC heating tubes according to claim 1 is characterized in that: The clamping plate (5) is provided with a matrix of penetrating through holes (51).

5. The fixture for producing PTC heating tubes according to claim 1 is characterized in that: The outer surface of each threaded screwing disc (7) is provided with screwing grooves (71) in an annular array.

6. The fixture for producing PTC heating tubes according to claim 1 is characterized in that: The top ends of the two threaded rods (4) are each provided with a connecting hole (41), the inner end wall of the connecting hole (41) is provided with a limiting ring groove (42), a rotating rod (43) is rotatably installed in the connecting hole (41), and a limiting ring block (44) which is limited by the limiting ring groove (42) is fixedly installed on the outer surface of the rotating rod (43); A hanging block (45) is fixedly mounted on the limiting ring block (44).

7. The fixture for producing PTC heating tubes according to claim 6 is characterized in that: A penetrating fixing groove (12) is provided on one side of the bottom of the two supporting members (1), and a penetrating limiting groove (121) is provided on the inner bottom surface of the fixing groove (12), and the limiting groove (121) is adapted to the hanging block (45).

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