A fin deburring device for PTC electric heaters with various specifications

Abstract

The invention relates to the field of special equipment for PTC electric heaters, and specifically is a fin deburring device for heat sinks of PTC electric heaters with multiple specifications, comprising a stand and a table panel for supporting heat sink products, and also comprising: an automatic feeding mechanism, which is arranged on the table panel and is used for automatically feeding the heat sink products; a deburring mechanism, which is arranged on both upper and lower sides of the equipment table panel and is used for synchronously deburring the upper and lower surfaces of the heat sink products, and a spacing adjustment mechanism with adjustable spacing is used to meet the positioning and feeding of heat sink products with multiple specifications, and the automatic feeding mechanism is used in conjunction with the heat sink product to complete the pushing problem, thereby eliminating the manual back and forth pushing work, reducing the manual labor intensity, and improving the work efficiency; an upper and lower set of deburring mechanisms are used to complete the synchronous deburring work on both sides of the heat sink product, and a transmission shaft is used to complete the synchronous transmission of two offset wire brush wheels, so as to realize the deburring work of heat sink products with multiple widths.

Description

Technical Field

[0001] The invention relates to the field of special equipment for PTC electric heaters, in particular to a fin deburring device for a heat sink of a PTC electric heater with multiple specifications. Background Art

[0002] PTC electric heaters are composed of PTC ceramic heating elements, heat-conducting media and heat sinks. This type of PTC heating element has the advantages of low thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and energy-saving electric heater. The outstanding feature is safety performance. Under any application conditions, it will not produce the "reddening" phenomenon on the surface of electric heating tube heaters, which will cause safety hazards such as burns and fires.

[0003] The heat sink assembly of the PTC electric heater is assembled from aluminum tubes, fins, and fixed brackets. The fins are formed by punching aluminum foil, which results in burrs on the edge of the fins, affecting the appearance and quality of the product. Therefore, after the final assembly of the PTC electric heater, the fins of the heat sink need to be deburred. At present, the deburring task is mostly completed by manually holding the two ends of the product and pumping back and forth on the high-speed rotating wire brush wheel for many times, which is time-consuming and laborious. Moreover, due to different products, the length of the heat sink fins and the total length of the heat sink will vary greatly, and manual operation will be even more time-consuming and laborious. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a fin deburring device for a heat sink of a PTC electric heater with multiple specifications.

[0005] A fin deburring device for a PTC electric heater heat sink with multiple specifications, including a stand and a table panel for supporting the heat sink product, and also including:

[0006] An automatic feeding mechanism, arranged on the table panel, is used for automatically feeding the heat sink products;

[0007] The deburring mechanism is provided on both the upper and lower sides of the equipment table panel, and is used to deburr the upper and lower surfaces of the heat sink product simultaneously.

[0008] The automatic feeding mechanism includes a side panel on the same horizontal plane as the table panel, a supporting inclined bracket cooperating with the side panel, a guide mechanism and a rodless cylinder arranged on the table panel, a push plate mechanism and a spacing adjustment mechanism arranged on the guide mechanism, and a cylinder mounting seat for supporting the rodless cylinder is arranged on the supporting inclined bracket.

[0009] The guiding mechanism comprises a linear guide rail 1 arranged on the table panel and a sliding block 1 arranged on the linear guide rail 1.

[0010] The push plate mechanism comprises a product push block, a guide push plate connected to the product push block and matched with a slide block, and a connecting piece connected to the guide push plate and matched with a rodless cylinder.

[0011] The spacing adjustment mechanism comprises a right-angle sheet metal bending part and an adjustment block respectively arranged at both ends of the side panel.

[0012] The deburring mechanism includes a mounting base, a transmission mechanism arranged on the mounting base to drive two groups of wire brushes to rotate synchronously, a lifting mechanism arranged on the mounting base for adjusting the height of the wire brush wheel, and a tensioning mechanism arranged on the mounting base for tightening the synchronous toothed belt.

[0013] The transmission mechanism includes a driving motor, a rigid coupling matched with the driving motor, a transmission shaft matched with the rigid coupling, a synchronous pulley and a synchronous toothed belt arranged at both ends of the transmission shaft and connected for transmitting power, and a wire brush wheel matched with the synchronous pulley. Both ends of the transmission shaft are provided with bearing seats for supporting the transmission shaft.

[0014] The lifting mechanism includes a ball screw mechanism for manual adjustment, a vertical mounting plate arranged on the ball screw mechanism, a second linear guide rail arranged on the vertical mounting plate, a slider arranged on the second linear guide rail, an L-shaped sliding plate arranged on the ball screw mechanism, a mounting bearing seat arranged on the L-shaped sliding plate, a rotating shaft and a stopper arranged on the mounting bearing seat, and a rotating synchronous pulley arranged on the rotating shaft and cooperating with the synchronous pulley to transmit driving force so that the wire brush wheel rotates synchronously.

[0015] The ball screw mechanism includes a T-shaped mounting plate arranged on a mounting base, a bearing seat 1 and a bearing seat 2 arranged on the T-shaped mounting plate, a ball screw passing through the bearing seat 1 and the bearing seat 2, a screw nut matched with the ball screw, a screw nut cover plate and a screw nut fixing block matched with the screw nut, a clamping block matched with the ball screw for fixing the height of the wire brush wheel, and a handwheel for manual adjustment, and the screw nut fixing block is connected to the L-shaped sliding plate to provide driving force.

[0016] The tensioning mechanism includes a fixed block arranged on the mounting base, reinforcing ribs arranged on both side ends of the fixed block, an adjustment plate arranged on the fixed block, and an adjustment mechanism cooperating with the adjustment plate. The adjustment mechanism includes two sets of rotating bearings for tensioning, a limit block cooperating with the adjustment plate, an adjustment bolt arranged on the adjustment plate and cooperating with the limit block for adjusting the height of the rotating bearing, an adjustment shaft cooperating with the rotating bearing for fixing the rotating bearing, and a locking nut and a retaining ring arranged on the adjusting shaft.

[0017] The beneficial effects of the present invention are as follows: a spacing adjustment mechanism with adjustable spacing is used to meet the positioning and feeding of heat sink products of various specifications, and an automatic feeding mechanism is used in conjunction with the heat sink product pushing problem, thereby eliminating the need for manual back and forth pushing work, reducing manual labor intensity, and improving work efficiency; an upper and lower group of deburring mechanisms are used to complete the synchronous deburring work on both sides of the heat sink product, and each group of deburring mechanisms uses a transmission shaft to complete the synchronous transmission of two offset wire brush wheels, thereby realizing the deburring work of heat sink products of various widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the heat dissipation rack product of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the automatic feeding mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the deburring main mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the synchronous belt tensioning mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting mechanism of the present invention;

[0025] Figure 7 It is a schematic diagram of the local structure of the present invention. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figures 1 to 7 As shown, a multi-specification PTC electric heater heat sink fin deburring device includes a stand 3 and a table panel 6 for supporting a heat sink product 1, and also includes:

[0028] An automatic feeding mechanism 2, arranged on the table panel 6, for automatically feeding the heat sink product 1;

[0029] The deburring mechanism 5 is provided on both the upper and lower sides of the equipment table panel 6 and is used for synchronously deburring the upper and lower surfaces of the heat sink product 1 .

[0030] The bottom end of the stand 3 is also provided with a supporting foot 4 .

[0031] An adjustable spacing adjustment mechanism is used to meet the positioning and feeding of heat sink products of various specifications. At the same time, the automatic feeding mechanism 2 is used in conjunction with the heat sink product 1 to complete the pushing problem, eliminating the manual pushing work back and forth, reducing manual labor intensity, and improving work efficiency; two sets of upper and lower deburring mechanisms 5 are used to complete the synchronous deburring work on both sides of the heat sink product 1. Each set of deburring mechanisms 5 uses a transmission shaft 54 ​​to complete the synchronous transmission of two offset wire brush wheels 59, which can realize the deburring work of heat sink products 1 of various widths.

[0032] The automatic feeding mechanism 2 includes a side panel 24 on the same horizontal plane as the table panel 6, a supporting inclined bracket 211 cooperating with the side panel 24, a guide mechanism and a rodless cylinder 210 arranged on the table panel 6, a push plate mechanism and a spacing adjustment mechanism arranged on the guide mechanism, and a cylinder mounting seat 26 for supporting the rodless cylinder 210 is arranged on the supporting inclined bracket 211.

[0033] The automatic feeding mechanism 2 is arranged on the left front side of the table panel 6 and installed above the side panel 24 .

[0034] The stand 3 is welded by square tubes with specifications of 40*40*2.5.

[0035] The guide mechanism includes a linear guide rail 27 arranged on the table panel 6 and a slider 28 arranged on the linear guide rail 27.

[0036] The push plate mechanism includes a product push block 22 , a guide push plate 21 connected to the product push block 22 and matched with a slider 28 , and a connector 29 connected to the guide push plate 21 and matched with a rodless cylinder 210 .

[0037] The supporting diagonal bracket 211 is constructed using standard aluminum profiles.

[0038] The spacing adjustment mechanism includes a right-angle sheet metal bending member 23 and an adjustment block 25 respectively arranged at both ends of the side panel 24 .

[0039] The deburring mechanism 5 includes a mounting base 58, a transmission mechanism arranged on the mounting base 58 to drive two groups of wire brushes to rotate synchronously, a lifting mechanism 8 arranged on the mounting base 58 for adjusting the height of the wire brush wheel, and a tensioning mechanism 7 arranged on the mounting base 58 for tightening the synchronous toothed belt 57.

[0040] The transmission mechanism includes a driving motor 51, a rigid coupling 52 cooperating with the driving motor 51, a transmission shaft 54 ​​cooperating with the rigid coupling 52, a synchronous pulley 56 and a synchronous toothed belt 57 arranged at both ends of the transmission shaft 54 ​​and connected for transmitting power, and a wire brush wheel 59 cooperating with the synchronous pulley 56. Both ends of the transmission shaft 54 ​​are provided with a bearing seat 53 for supporting the transmission shaft 54 ​​and a pad 55 for supporting the bearing seat 53.

[0041] The synchronous toothed belt 57 connects the synchronous pulley 56 on the transmission mechanism with the synchronous pulley 81 on the lifting mechanism 8, synchronously drives the rotating shaft 83 to rotate, completes the driving force transmission, and makes the wire brush wheel 59 rotate synchronously.

[0042] The lifting mechanism 8 includes a ball screw mechanism for manual adjustment, a vertical mounting plate 816 arranged on the ball screw mechanism, a linear guide rail 86 arranged on the vertical mounting plate 816, a slider 85 arranged on the linear guide rail 86, an L-shaped sliding plate 84 arranged on the ball screw mechanism, a mounting bearing seat 82 arranged on the L-shaped sliding plate 84, a rotating shaft 83 and a stopper 510 arranged on the mounting bearing seat 82, and a rotating synchronous pulley 81 arranged on the rotating shaft 83 and cooperating with the synchronous pulley 56 to transmit driving force so that the wire brush wheel 59 rotates synchronously.

[0043] The stopper 510 is used to block the wire brush wheel 59, lock and prevent the wire brush wheel 59 from falling.

[0044] The wire brush wheel 59 is arranged on the rotating shaft 83 .

[0045] The lifting mechanism 8 is connected to the mounting base plate 58 via a T-shaped mounting plate 813 .

[0046] The ball screw mechanism includes a T-shaped mounting plate 813 arranged on the mounting base 58, a bearing seat 1 815 and a bearing seat 2 89 arranged on the T-shaped mounting plate 813, a ball screw 814 passing through the bearing seat 1 815 and the bearing seat 2 89, a screw nut 811 matched with the ball screw 814, a screw nut cover plate 810 and a screw nut fixing block 812 matched with the screw nut 811, a clamping block 88 matched with the ball screw 814 for fixing the height of the wire brush wheel 59, and a handwheel 87 for manual adjustment. The screw nut fixing block 812 is connected to the L-shaped sliding plate 84 to provide driving force.

[0047] The tensioning mechanism 7 includes a fixed block 79 arranged on the mounting base 58, reinforcing ribs 75 arranged on both side ends of the fixed block 79, an adjustment plate 76 arranged on the fixed block 79, and an adjustment mechanism coordinated with the adjustment plate 76. The adjustment mechanism includes two groups of rotating bearings 73 for tensioning, a limit block 71 coordinated with the adjustment plate 76, an adjustment bolt 77 arranged on the adjustment plate 76 and coordinated with the limit block 71 for adjusting the height of the rotating bearing 73, an adjustment shaft 78 coordinated with the rotating bearing 73 for fixing the rotating bearing 73, and a locking nut 74 and a retaining ring 72 arranged on the adjusting shaft 78.

[0048] The method of using the present invention is as follows: according to the size of the heat sink product 1, the distance between the right-angle sheet metal bending part 23 and the adjustment block 25 is adjusted, and then the heat sink product 1 is pushed into the deburring mechanism 5 by the rodless cylinder 210, and at the same time, the driving motor 51 transmits the rotational driving force to the wire brush wheel 59 through the transmission mechanism and the synchronous toothed belt 57 to make it rotate at high speed. The upper and lower groups of deburring mechanisms 5 work simultaneously to complete the double-sided deburring of the heat sink product 1. Since the wire brush wheel 59 may be worn or the height of the heat sink product is different, it is necessary to adjust the distance between the upper and lower groups of wire brush wheels 59 through the lifting mechanism 8. After completing the adjustment of the lifting mechanism 8, it is necessary to adjust the tensioning mechanism 7 to complete the tensioning of the synchronous toothed belt 57 to ensure transmission stability.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fin deburring device for a PTC electric heater heat sink with various specifications, comprising a stand (3) and a table panel (6) for supporting a heat sink product (1), characterized in that: Also includes: An automatic feeding mechanism (2) is arranged on the table panel (6) and is used to automatically feed the heat dissipation rack product (1); A deburring mechanism (5) is provided on both upper and lower sides of the equipment table panel (6) and is used to simultaneously deburr the upper and lower surfaces of the heat sink product (1); The deburring mechanism (5) comprises a mounting base (58), a transmission mechanism arranged on the mounting base (58) for driving two groups of wire brushes to rotate synchronously, a lifting mechanism (8) arranged on the mounting base (58) for adjusting the height of the wire brush wheel, and a tensioning mechanism (7) arranged on the mounting base (58) for tightening the synchronous toothed belt (57); the transmission mechanism comprises a driving motor (51), a rigid coupling (52) matched with the driving motor (51), a transmission shaft (54) matched with the rigid coupling (52), and two couplings at both ends of the transmission shaft (54). A synchronous pulley (56) and a synchronous toothed belt (57) for transmitting power are arranged and connected, and a wire brush wheel (59) cooperates with the synchronous pulley (56); both ends of the transmission shaft (54) are provided with a bearing seat (53) for supporting the transmission shaft (54) and a cushion block (55) for the bearing seat (53); the lifting mechanism (8) includes a ball screw mechanism for manual adjustment, a vertical mounting plate (816) arranged on the ball screw mechanism, a linear guide rail (86) arranged on the vertical mounting plate (816), and a linear guide rail (86) arranged on the linear guide rail (86). A slider (85) on the ball screw mechanism, an L-shaped sliding plate (84) arranged on the ball screw mechanism, a mounting bearing seat (82) arranged on the L-shaped sliding plate (84), a rotating shaft (83) and a stopper (510) arranged on the mounting bearing seat (82), and a rotating synchronous pulley (81) arranged on the rotating shaft (83) and cooperating with a synchronous pulley (56) to transmit driving force so that the wire brush wheel (59) rotates synchronously; the ball screw mechanism comprises a T-shaped mounting plate (813) arranged on the mounting base (58), a bearing arranged on the T-shaped mounting plate (813), and a bearing assembly (82) arranged on the L-shaped sliding plate (84). Seat 1 (815) and bearing seat 2 (89), a ball screw (814) passing through bearing seat 1 (815) and bearing seat 2 (89), a screw nut (811) matched with the ball screw (814), a screw nut cover plate (810) and a screw nut fixing block (812) matched with the screw nut (811), a clamping block (88) matched with the ball screw (814) for fixing the height of the wire brush wheel (59), and a hand wheel (87) for manual adjustment, wherein the screw nut fixing block (812) is connected to an L-shaped sliding plate (84) to provide a driving force; The automatic feeding mechanism (2) comprises a side panel (24) on the same horizontal plane as the table panel (6), a supporting inclined bracket (211) matched with the side panel (24), a guide mechanism and a rodless cylinder (210) arranged on the table panel (6), a push plate mechanism and a spacing adjustment mechanism arranged on the guide mechanism, and a cylinder mounting seat (26) for supporting the rodless cylinder (210) is arranged on the supporting inclined bracket (211).

2. The multi-specification PTC electric heater heat sink fin deburring device according to claim 1 is characterized in that: The guide mechanism comprises a linear guide rail (27) arranged on the table panel (6) and a slider (28) arranged on the linear guide rail (27).

3. The multi-specification PTC electric heater heat sink fin deburring device according to claim 2 is characterized in that: The push plate mechanism comprises a product push block (22), a guide push plate (21) connected to the product push block (22) and cooperating with a slider (28), and a connecting piece (29) connected to the guide push plate (21) and cooperating with a rodless cylinder (210).

4. The multi-specification PTC electric heater heat sink fin deburring device according to claim 1 is characterized in that: The spacing adjustment mechanism comprises right-angled sheet metal bending parts (23) and adjustment blocks (25) respectively arranged at both ends of the side panel (24).

5. The multi-specification PTC electric heater heat sink fin deburring device according to claim 1 is characterized in that: The tensioning mechanism (7) comprises a fixing block (79) arranged on the mounting base (58), reinforcing ribs (75) arranged on both side ends of the fixing block (79), an adjusting plate (76) arranged on the fixing block (79), and an adjusting mechanism cooperating with the adjusting plate (76); the adjusting mechanism comprises two sets of rotating bearings (73) for tensioning, a limit block (71) cooperating with the adjusting plate (76), an adjusting bolt (77) arranged on the adjusting plate (76) and cooperating with the limit block (71) for adjusting the height of the rotating bearing (73), an adjusting shaft (78) cooperating with the rotating bearing (73) for fixing the rotating bearing (73), a locking nut (74) and a retaining ring (72) arranged on the adjusting shaft (78).

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