A clamping mechanism for hardware spraying equipment

Abstract

The present invention relates to the field of hardware processing technology, and discloses a clamping mechanism for hardware spraying equipment, including a circular cavity frame and an end cover, wherein the end cover is fixed to the upper end of the circular cavity frame; a cross metal frame is fixed to the lower end of the circular cavity frame, and a clamping plate is provided for sliding inside the cross metal frame, and the clamping plates are arranged opposite to each other in pairs, and clamping plates are provided in four directions of the cross metal frame; an adjusting plate for controlling the clamping plate is provided inside the circular cavity frame, and a power-assisting clamping rod for pushing the clamping plate to be squeezed is also provided at the lower end of the circular cavity frame. The present invention has an adjusting plate in the shape of a long strip, and depressions on both sides, and the adjusting plate rotates, and the clamping plates on both sides move closer to the middle. After the clamping plates on both sides move closer to the middle to clamp the hardware, the clamping plates on the other two sides will be squeezed outwards under the action of the adjusting plate, so as to realize automatic replacement of clamping and improve efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hardware processing, in particular to a clamping mechanism of hardware product spraying equipment. Background Art

[0002] Hardware products refer to metal blocks, metal bars, metal tubes, etc. of various specifications and shapes made of metal materials. After the production of metal parts is completed, the metal parts are often sprayed for anti-corrosion and anti-rust treatment, so that the metal parts have corrosion-resistant and rust-proof properties, and the performance of the metal parts is improved.

[0003] In the patent with application number 202221156712.9, a rotary clamping tool for a metal spraying device is mentioned. The metal parts are placed on the top of the base body. The rotating block is rotated by rotating the locking rod, and the guide column is rotated in a circle at the same time. The guide column pulls the rotating rod to rotate, so that the clamping plate is clamped. The connecting block is lowered by rotating the adjusting screw. The connecting block presses the rotating plate to rotate the rotating plate on the outer surface of the limit shaft. The other end of the rotating plate rises to push out the connecting column. The steering plate rotates on the outer surface of the movable column, thereby driving the clamping base to rotate inside the rotating groove. The angle is adjusted to make the spraying range wider, the spraying more uniform, and the spraying efficiency improved.

[0004] During the clamping process, the above-mentioned equipment still presents one or two clamping plates for clamping, and the clamped part cannot be sprayed. It needs to be changed in position and clamped again, so the efficiency of spraying will be reduced. Based on this, a clamping mechanism is needed that can clamp and does not need to be replaced manually. Summary of the invention

[0005] The purpose of the present invention is to provide a clamping mechanism for hardware product spraying equipment to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A clamping mechanism for a hardware product spraying device, comprising a circular cavity frame and an end cover, wherein the end cover is fixed to the upper end of the circular cavity frame;

[0007] A cross metal frame is fixed at the lower end of the circular cavity frame, and a clamping plate is slidably provided inside the cross metal frame. The clamping plates are arranged opposite to each other in pairs, and clamping plates are provided in four directions of the cross metal frame;

[0008] An adjusting plate for controlling the clamping plate is arranged inside the circular cavity frame, and a power-assisting clamping rod for pushing the clamping plate to be squeezed is also arranged at the lower end of the circular cavity frame.

[0009] Preferably, the interior of the cross metal frame is hollow, and the interior of the cross metal frame is connected to the interior of the circular cavity frame;

[0010] The outer side of the cross metal frame is provided with a limiting slide groove extending along the cross metal frame, and the outer side of the clamping plate is integrally formed with a metal clamping block, and the metal clamping block is slidably set in the limiting slide groove, and the outer side of the metal clamping block is fixed with a bonding plate, and the bonding plate is bonded to the outer side of the cross metal frame, and the bonding plate is used to limit the clamping plate.

[0011] Preferably, the power-assist clamping rod is disposed against the outside of the clamping plate, a sheet metal piece is fixed to the outside of the power-assist clamping rod, the sheet metal piece is fixed to the lower end of the circular cavity frame, the power-assist clamping rod has a telescopic effect, and a reset spring is provided inside the rod.

[0012] Preferably, the upper end of the cross metal frame is fixed with arranged teeth, and one side of the teeth is vertical and the other side is inclined;

[0013] Two upper holes are opened on the upper end of the clamping plate, and a limit rod is inserted in the upper hole. A reset spring is fixed to the lower end of the limit rod, and the lower end of the reset spring is fixed to the inner wall of the upper hole. The limit rod can move up and down, and a metal plate 1 is fixed to the upper end of the limit rod. A metal plate 2 perpendicular to the metal plate 1 is also fixed to the upper end of the metal plate 1, and inclined blocks matching the meshing teeth are fixed on both sides of the metal plate 1.

[0014] Preferably, the inclined block is made of metal, one side of the inclined block is vertically arranged, and the other side is inclined. Pushing the inclined block inward can make the inclined surface of the inclined block cooperate with the inclined surface of the gear and pull the reset spring. Pushing in the opposite direction can make the vertical surface of the inclined block (45) engage with the vertical surface of the gear (31).

[0015] Preferably, a fixed circular layer is rotatably mounted on the lower end of the adjusting plate, the fixed circular layer is fixed on the inner wall of the circular cavity frame, and the fixed circular layer is located in the middle of the cross metal frame, and a rotating shaft is fixed on the upper end of the adjusting plate, and an end cover extends upward from the upper end of the rotating shaft;

[0016] The inner side of the metal plate 1 is arranged in an arc-shaped surface and is arranged smoothly, the upper end of the metal plate 2 is arranged flush with the upper end of the adjustment plate, and the adjustment plate is in the shape of a long strip, and the clamping plates on both sides can be moved closer or farther away from each other by rotation;

[0017] The outer corners of the adjusting plate are also provided with bevels, and the height of the bevels is greater than the thickness of the second metal plate.

[0018] Preferably, the two ends of the adjusting plate have smooth transitions, the two sides thereof are arranged in two sections of protrusions with a concave middle, and the shape of the outer side of the adjusting plate has a smooth transition.

[0019] Preferably, the interior of the circular cavity frame further includes an auxiliary unit, and the auxiliary unit includes a long expansion bag, a metal tube, a U-shaped plate and an internal bag layer;

[0020] The metal tube is fixed to the upper end of the clamping plate, the U-shaped plate is fixed to the upper end of the metal tube, the built-in capsule layer is fixed in the U-shaped plate, and the built-in capsule layer is squeezed with the rotating shaft as the clamping plate moves, and then the U-shaped plates on both sides are staggered;

[0021] The long expansion bag is fixed on the inner side of the clamping plate, and the interior of the long expansion bag is communicated with the interior of the built-in bag layer through a metal tube.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The present invention rotates the adjusting plate, and the bevel on the adjusting plate is squeezed with the metal plate 2, the inclined block and the teeth are cancelled, and the metal plate 1 is pushed outward to achieve the compression of the auxiliary clamping rod. The clamping plates on the other two sides are not affected by the adjusting plate, and are clamped under the cooperation of the inclined block and the teeth, so that the other two clamping plates clamp the hardware, realizing the function of replaceable clamping, and the clamped position can also be sprayed.

[0024] (2) The present invention makes the adjusting plate into a long strip shape and has depressions on both sides. When the adjusting plate rotates, the clamping plates on both sides move closer to the middle. After the clamping plates on both sides move closer to the middle to clamp the hardware, the clamping plates on the other two sides will be squeezed outwards under the action of the adjusting plate, thereby realizing automatic replacement of clamping and improving efficiency.

[0025] (3) The present invention provides a long expansion bag which can change according to the shape of the hardware, thereby increasing the contact area and preventing the hardware from slipping.

[0026] (4) The present invention provides an internal bladder layer, which is compressed by the rotating shaft, thereby increasing the deformation coefficient of the elongated expansion bladder. The deformation degree is large, and it is easy to fit with different hardware, thereby achieving better clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of a half-section structure of a circular cavity frame of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross metal frame structure of the present invention;

[0030] Figure 4This is a schematic diagram of the separation structure of the cross metal frame and the clamping plate of the present invention;

[0031] Figure 5 For the present invention Figure 4 Middle A is a schematic diagram of a partially enlarged structure;

[0032] Figure 6 This is a schematic diagram of the structure of the regulating plate of the present invention.

[0033] In the figure: 1. circular cavity frame; 2. end cover; 3. cross metal frame; 31. meshing teeth; 32. limiting slide groove; 4. clamping plate; 41. metal clamping block; 42. fitting plate; 43. upper hole; 44. metal plate one; 45. inclined block; 46. limiting rod; 47. reset spring; 48. metal plate two; 5. adjustment plate; 51. fixed circular layer; 52. rotating shaft; 53. bevel; 6. power clamping rod; 61. sheet metal; 7. auxiliary unit; 71. long expansion bag; 72. metal tube; 73. U-shaped plate; 74. built-in bag layer. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-6 ,

[0036] Embodiment 1:

[0037] The present invention provides a technical solution: a clamping mechanism for a hardware product spraying device, comprising a circular cavity frame 1 and an end cover 2, wherein the end cover 2 is fixed to the upper end of the circular cavity frame 1;

[0038] A cross metal frame 3 is fixed at the lower end of the circular cavity frame 1, and a clamping plate 4 is slidably provided inside the cross metal frame 3. The clamping plates 4 are arranged opposite to each other in pairs, and clamping plates 4 are provided in four directions of the cross metal frame 3;

[0039] An adjusting plate 5 for controlling the clamping plate 4 is arranged inside the circular cavity frame 1 , and a power-assisting clamping rod 6 for pushing the clamping plate 4 to be squeezed is also arranged at the lower end of the circular cavity frame 1 .

[0040] The interior of the cross metal frame 3 is hollow, and the interior of the cross metal frame 3 is connected to the interior of the circular cavity frame 1;

[0041] The outer side of the cross metal frame 3 is provided with a limiting slide groove 32 extending along the cross metal frame 3, and the outer side of the clamping plate 4 is integrally formed with a metal clamp block 41, which is slidably set in the limiting slide groove 32, and the outer side of the metal clamp block 41 is fixed with a bonding plate 42, which is bonded to the outer side of the cross metal frame 3. The bonding plate 42 is used to limit the clamping plate 4 so that the clamping plate 4 is in a vertical state, and the clamping plate 4 is still in a vertical state during the movement to avoid other deformations.

[0042] The power-assist clamping rod 6 is disposed against the outer side of the clamping plate 4, and a sheet metal piece 61 is fixed to the outer side of the power-assist clamping rod 6, and the sheet metal piece 61 is fixed to the lower end of the circular cavity frame 1. The power-assist clamping rod 6 has a telescopic effect, and a spring for resetting is provided inside. Under the action of the spring, the power-assist clamping rod 6 squeezes the clamping plate 4 so that the clamping plate 4 can clamp the hardware to achieve the clamping effect.

[0043] The upper end of the cross metal frame 3 is fixed with arranged teeth 31, and one side of the teeth 31 is vertical and the other side is inclined;

[0044] Two upper holes 43 are opened at the upper end of the clamping plate 4, and a limit rod 46 is inserted in the upper hole 43. A return spring 47 is fixed to the lower end of the limit rod 46. The lower end of the return spring 47 is fixed to the inner wall of the upper hole 43. The limit rod 46 can move up and down. A metal plate 1 44 is fixed to the upper end of the limit rod 46. A metal plate 2 48 perpendicular to the metal plate 1 44 is also fixed to the upper end of the metal plate 1 44. Inclined blocks 45 cooperating with the gear 31 are fixed on both sides of the metal plate 1 44.

[0045] The inclined block 45 is made of metal. One side of the inclined block 45 is vertically arranged, and the other side is inclined. Pushing the inclined block 45 inward can make the inclined surface of the inclined block 45 match the inclined surface of the tooth 31 and pull the reset spring 47. Pushing in the opposite direction can make the vertical surface of the inclined block (45) and the vertical surface of the tooth (31) clamped, so as to prevent the hardware from falling downward due to external force during the clamping process.

[0046] A fixed circular layer 51 is rotatably mounted at the lower end of the adjustment plate 5. The fixed circular layer 51 is fixed on the inner wall of the circular cavity frame 1, and the fixed circular layer 51 is located in the middle of the cross metal frame 3. A rotating shaft 52 is fixed at the upper end of the adjustment plate 5. The upper end of the rotating shaft 52 extends upward from the end cover 2. The rotating shaft 52 is rotated to drive the clamping. The upper end of the rotating shaft 52 can be connected to the output end of the servo motor.

[0047] The inner side of the metal plate 1 44 is arranged in an arc-shaped surface and is smooth. The upper end of the metal plate 2 48 is arranged flush with the upper end of the adjustment plate 5. The adjustment plate 5 is in an elongated strip shape and can be rotated to make the clamping plates 4 on both sides approach or move away from each other.

[0048] A bevel 53 is also provided on the outer corner of the adjusting plate 5 , and the height of the bevel 53 is greater than the thickness of the metal plate 48 .

[0049] The two ends of the adjusting plate 5 are smoothly transitioned, the two sides are convex in two sections and concave in the middle, and the outer shape of the adjusting plate 5 has a smooth transition.

[0050] The adjusting plate 5 is rotated to make the bevel 53 on the adjusting plate 5 squeeze the metal plate 2 48, and under the action of squeezing, the metal plate 2 48 moves upward, and the return spring 47 at the lower end of the metal plate 2 48 is stretched, so that the inclined block 45 also moves upward, and the inclined block 45 and the gear 31 are cancelled. At the same time, as the adjusting plate 5 rotates and squeezes the metal plate 1 44, the metal plate 1 44 is pushed outward to achieve the compression of the power-assisted clamping rod 6. At the same time, the clamping plates 4 on the other two sides are not affected by the adjusting plate 5, and move under the thrust of the power-assisted clamping rod 6, and are clamped under the cooperation of the inclined block 45 and the gear 31, so that the other two clamping plates 4 clamp the hardware to achieve the function of replacement clamping, so that the clamped position can also be sprayed;

[0051] Secondly, the adjusting plate 5 is in the shape of a long strip and has depressions on both sides. Therefore, when the adjusting plate 5 rotates, the clamping plates 4 on both sides can move closer to the middle, while the clamping plates 4 on the other two sides are still in a clamping state. After the clamping plates 4 on both sides move closer to the middle to clamp the hardware, the clamping plates 4 on the other two sides will be squeezed outwards under the action of the adjusting plate 5, thereby realizing automatic replacement of clamping and improving efficiency.

[0052] Embodiment 2:

[0053] On the basis of the first embodiment, the circular cavity frame 1 further includes an auxiliary unit 7 inside, and the auxiliary unit 7 includes a long expansion bag 71, a metal tube 72, a U-shaped plate 73 and a built-in bag layer 74;

[0054] The metal tube 72 is fixed to the upper end of the clamping plate 4, the U-shaped plate 73 is fixed to the upper end of the metal tube 72, the built-in capsule layer 74 is fixed in the U-shaped plate 73, and the built-in capsule layer 74 is squeezed with the rotating shaft 52 as the clamping plate 4 moves, and then the U-shaped plates 73 on both sides are staggered;

[0055] The long expansion bladder 71 is fixed on the inner side of the clamping plate 4 , and the interior of the long expansion bladder 71 is connected to the interior of the built-in bladder layer 74 through the metal tube 72 .

[0056] By providing the long expansion bag 71, the clamping plate 4 can change according to the shape of the hardware when clamping the hardware, so as to increase the contact area and avoid the hardware from slipping;

[0057] Secondly, a built-in bladder layer 74 is provided. Under the action of the built-in bladder layer 74 and the compression of the built-in bladder layer 74 with the rotating shaft 52, the deformation coefficient of the elongated expansion bladder 71 can be increased. The degree of deformation is large, and it is easy to fit with different hardware to achieve better clamping.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism for a hardware product spraying device, characterized in that: It comprises a circular cavity frame (1) and an end cover (2), wherein the end cover (2) is fixed to the upper end of the circular cavity frame (1); A cross metal frame (3) is fixed to the lower end of the circular cavity frame (1), and a clamping plate (4) is provided inside the cross metal frame (3) for sliding movement. The clamping plates (4) are arranged opposite to each other in pairs, and clamping plates (4) are provided in four directions of the cross metal frame (3); An adjusting plate (5) for controlling the clamping plate (4) is provided inside the circular cavity frame (1), and a power-assisting clamping rod (6) for pushing the clamping plate (4) to be squeezed is also provided at the lower end of the circular cavity frame (1); The interior of the cross metal frame (3) is hollow, and the interior of the cross metal frame (3) is connected to the interior of the circular cavity frame (1); The outer side of the cross metal frame (3) is provided with a limiting slide groove (32) extending along the cross metal frame (3); the outer side of the clamping plate (4) is integrally formed with a metal clamp block (41); the metal clamp block (41) is slidably arranged in the limiting slide groove (32); the outer side of the metal clamp block (41) is fixed with a bonding plate (42); the bonding plate (42) is bonded to the outer side of the cross metal frame (3); and the bonding plate (42) is used to limit the clamping plate (4); Arranged teeth (31) are fixed to the upper end of the cross metal frame (3), and one side of the teeth (31) is vertical and the other side is inclined; The upper end of the clamping plate (4) is provided with two upper holes (43), and a limiting rod (46) is inserted into the upper hole (43). A return spring (47) is fixed to the lower end of the limiting rod (46), and the lower end of the return spring (47) is fixed to the inner wall of the upper hole (43). The limiting rod (46) can move up and down, and a metal plate 1 (44) is fixed to the upper end of the limiting rod (46). A metal plate 2 (48) perpendicular to the metal plate 1 (44) is also fixed to the upper end of the metal plate 1 (44), and inclined blocks (45) cooperating with the meshing teeth (31) are fixed to both sides of the metal plate 1 (44); A fixed circular layer (51) is rotatably mounted on the lower end of the adjusting plate (5), the fixed circular layer (51) is fixed on the inner wall of the circular cavity frame (1), and the fixed circular layer (51) is located in the middle of the cross metal frame (3), and a rotating shaft (52) is fixed on the upper end of the adjusting plate (5), and the upper end of the rotating shaft (52) extends upwardly out of the end cover (2); The inner side of the first metal plate (44) is arranged in an arc-shaped and smooth surface, the upper end of the second metal plate (48) is arranged flush with the upper end of the adjustment plate (5), and the adjustment plate (5) is in the shape of a long strip, and can rotate to make the clamping plates (4) on both sides approach or move away from each other; The outer corners of the adjustment plate (5) are also provided with bevels (53), and the height of the bevels (53) is greater than the thickness of the second metal plate (48).

2. The clamping mechanism of the hardware product spraying equipment according to claim 1 is characterized in that: The power-assist clamping rod (6) is disposed against the outside of the clamping plate (4), a sheet metal piece (61) is fixed to the outside of the power-assist clamping rod (6), and the sheet metal piece (61) is fixed to the lower end of the circular cavity frame (1). The power-assist clamping rod (6) has a telescopic effect and has a spring inside for returning to the original position.

3. The clamping mechanism of the hardware spraying equipment according to claim 1 is characterized in that: The inclined block (45) is made of metal. One side of the inclined block (45) is vertically arranged, and the other side is inclined. Pushing the inclined block (45) inward can make the inclined surface of the inclined block (45) match the inclined surface of the gear (31) and pull the return spring (47). Pushing in the opposite direction can make the vertical surface of the inclined block (45) and the vertical surface of the gear (31) engage.

4. The clamping mechanism of the hardware spraying equipment according to claim 1 is characterized in that: The two ends of the adjustment plate (5) are smoothly transitioned, the two sides are arranged in two sections with a protrusion and a depression in the middle, and the outer shape of the adjustment plate (5) is smoothly transitioned.

5. The clamping mechanism of the hardware spraying equipment according to claim 1 is characterized in that: The circular cavity frame (1) further comprises an auxiliary unit (7) inside, wherein the auxiliary unit (7) comprises a long expansion bag (71), a metal tube (72), a U-shaped plate (73) and an internal bag layer (74); The metal tube (72) is fixed to the upper end of the clamping plate (4), the U-shaped plate (73) is fixed to the upper end of the metal tube (72), the built-in capsule layer (74) is fixed in the U-shaped plate (73), and the built-in capsule layer (74) is squeezed with the rotating shaft (52) as the clamping plate (4) moves, and then the U-shaped plates (73) on both sides are staggered; The elongated expansion bladder (71) is fixed on the inner side of the clamping plate (4), and the interior of the elongated expansion bladder (71) is connected to the interior of the built-in bladder layer (74) via a metal tube (72).

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