Stainless steel pipe fitting surface polishing device

Abstract

The utility model discloses a stainless steel pipe fitting surface polishing device, which is characterized by comprising a product supporting part, a polishing part and a polishing part, the product driving part is arranged at the front end of the product supporting part, a grinding distance is formed between the product driving part and the product supporting part, a product claw disc is arranged on the product driving part, and the product driving part drives the product claw disc to be close to or away from the supporting groove and drives the product claw disc to rotate; the polishing parts are divided into two groups, and the two groups of polishing parts are symmetrically arranged on the left side and the right side of the polishing space; and the polishing part is provided with a polishing belt and a polishing driving motor for driving the polishing belt to rotate. According to the utility model, the polishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of metal product production and processing, in particular to a stainless steel pipe surface grinding device, which is mainly used for grinding solid stainless steel pipes. Background Art

[0002] Stainless steel pipe fittings are a common metal product. After production and processing, their surface smoothness is not good and they need to be polished. Or after the product is completed or temporarily not in use, it is generally piled up in the warehouse or directly on the ground outdoors. Although stainless steel pipes are not easy to rust, they will rust over time and need rust removal and maintenance.

[0003] The existing technology mainly targets hollow stainless steel pipe grinding equipment because they are relatively light and easy to handle. However, solid stainless steel pipes are relatively heavy, especially large stainless steel pipes. Conventional grinding equipment cannot be used for automatic grinding due to their heavy weight. Manual grinding requires manual handheld grinding equipment. This method has low grinding efficiency and high labor intensity for operators. Summary of the Invention

[0004] The utility model aims to provide a surface grinding device for stainless steel pipe fittings. By using the structure, the grinding efficiency and the grinding quality are improved.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a surface grinding device for stainless steel pipe fittings, comprising:

[0006] A product support portion, wherein the product support portion is provided with a support groove for supporting the product;

[0007] A product driving portion, the product driving portion is arranged at the front end of the product supporting portion, a grinding distance is defined between the product driving portion and the product supporting portion, and a product claw disc is provided on the product driving portion, the product driving portion drives the product claw disc to approach and move away from the supporting groove, and drives the product claw disc to rotate;

[0008] The grinding part is divided into two groups, and the two groups of grinding parts are symmetrically arranged on the left and right sides of the grinding distance; the grinding part is provided with a grinding belt and a grinding drive motor for driving the grinding belt to rotate.

[0009] In the above technical solution, the support groove is provided with two sets of symmetrical inclined surfaces, each of which is inclined outward from bottom to top;

[0010] A plurality of supporting balls are rotatably arranged on each of the inclined surfaces.

[0011] In the above technical solution, the product driving unit includes a first support frame, a first linear driving unit and a first rotary driving unit. The first rotary driving unit includes a product claw plate, a first rotary motor and a first slide. The first slide is linearly movable on the first support frame. The product claw plate is rotatably connected to the first slide. The first rotary motor is installed on the first slide. The first rotary motor drives the product claw plate to rotate.

[0012] The first linear drive unit includes a first motor and a first ball screw. A first linear slide rail is provided on the first support frame. The first ball screw is arranged on the first support frame beside the first linear slide rail and rotates parallel to the first support frame. The first slide is slidably arranged on the first linear slide rail. The first ball screw is connected to the first slide. The first motor drives the first ball screw to rotate, so that the product claw plate moves longitudinally towards or away from the support groove.

[0013] In the above technical solution, the bottom of the grinding part is horizontally slidably arranged on a bottom plate, and horizontal slide rails are respectively provided on both sides of the grinding interval, and each of the grinding parts is slidably arranged on one side of the horizontal slide rail;

[0014] A transverse driving mechanism is provided on the bottom plate, and the transverse driving mechanism drives the two groups of grinding parts to move toward or away from each other transversely.

[0015] In the above technical solution, the grinding part includes a bracket, a grinding drive motor installed on the bracket, a grinding belt and multiple support rollers. A driving wheel is provided on the output shaft of the grinding drive motor. The grinding belt is wound around the multiple support rollers and the driving wheel. When the driving wheel rotates, it drives the grinding belt to rotate.

[0016] In the above technical solution, the support roller includes two inner support rollers and a tension adjustment roller. The grinding drive motor is arranged near the outer end of the bracket. The two inner support rollers are connected to the inner end of the bracket through a connecting piece. The tension adjustment roller is rotatably connected to the upper middle part of the bracket through an adjustment plate.

[0017] In the above technical solution, the two inner support rollers are rotatably arranged at the top and bottom of the inner end of the connecting member respectively;

[0018] The middle portion of the inner end of the connecting member is connected to the bracket via a first locking member, and the middle portion of the outer end of the connecting member is connected to the bracket via a second locking member;

[0019] The connecting piece is provided with an arc groove coaxially arranged with the first locking piece, and the second locking piece is inserted into the arc groove.

[0020] In the above technical solution, the first locking member and the second locking member fixedly connect the connecting member and the bracket;

[0021] Alternatively, the connecting member is rotatably connected to the bracket via the first locking member, and the second locking member limits the rotation angle of the connecting member relative to the bracket.

[0022] In the above technical solution, a reinforcing plate is also provided in the middle of the connecting member, and the reinforcing plate is arranged between the two inner support rollers. The inner end surface of the reinforcing plate is arranged close to the inner surface of the grinding belt, or the inner end surface of the reinforcing plate contacts the inner surface of the grinding belt.

[0023] In the above technical solution, the tension adjustment roller is rotatably connected to the middle portion of the adjustment plate, and the outer end of the adjustment plate is rotatably connected to the bracket;

[0024] A gas spring is also provided, wherein the fixed end at the bottom of the gas spring is rotatably connected to the bracket, and the output end at the top of the gas spring is rotatably connected to the inner end of the adjustment plate.

[0025] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0026] 1. The present invention provides a product support part to support the product, utilizes a product drive part to realize the axial movement and rotation of the product, and then provides two sets of grinding parts to grind the product simultaneously, thereby realizing automatic grinding of the product, with high grinding efficiency, good quality, and reduced labor intensity of operators;

[0027] 2. In the present invention, supporting balls are arranged in the supporting grooves, which can not only realize rotational support for the product, but also support the axial movement of the product, so that the product driving part can drive the product to rotate and move with minimal driving force, which can save energy and reduce costs;

[0028] 3. In the present invention, the tension of the grinding belt is adjusted by setting a gas spring, which can effectively ensure the tension of the grinding belt and the grinding effect;

[0029] 4. The connecting piece in the present invention can be fixedly connected to the bracket or rotatably connected, and can be adjusted according to the product to ensure grinding stability and grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention;

[0031] Figure 2 yes Figure 1 A partial enlarged view of the product support part;

[0032] Figure 3 This is a schematic structural diagram of the grinding portion in Example 1 of the present utility model;

[0033] Figure 4 It is a structural diagram of the grinding part in the second embodiment of the present utility model.

[0034] Among them: 1. Product support part; 11. Support groove; 12. Inclined surface; 13. Support ball;

[0035] 2. Product drive unit; 21. Grinding spacing; 22. Product claw plate; 23. First support frame; 24. First rotating motor; 25. First slide; 26. First motor; 27. First ball screw; 28. First linear slide;

[0036] 3. Grinding part; 31. Grinding belt; 32. Grinding drive motor; 33. Bottom plate; 34. Horizontal slide rail; 35. Horizontal motor; 36. Forward and reverse lateral screws; 37. Bracket; 38. Driving wheel; 39. Inner support roller; 40. Tension adjustment roller; 41. Connecting piece; 42. Adjusting plate; 43. Gas spring; 44. First locking accessory; 45. Second locking accessory; 46. Arc groove; 47. Reinforcement plate. DETAILED DESCRIPTION

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0038] Example 1: See Figure 1-3 As shown, a stainless steel pipe surface grinding device includes:

[0039] A product support portion 1, wherein the product support portion 1 is provided with a support groove 11 for supporting the product;

[0040] A product driving portion 2 is provided at the front end of the product supporting portion 1. A grinding distance 21 is defined between the product driving portion 2 and the product supporting portion 1. A product claw plate 22 is provided on the product driving portion 2. The product driving portion 2 drives the product claw plate 22 to move toward and away from the supporting groove 11 and drives the product claw plate 22 to rotate.

[0041] The grinding part 3 is divided into two groups, and the two groups of grinding parts 3 are symmetrically arranged on the left and right sides of the grinding distance 21; the grinding part 3 is provided with a grinding belt 31 and a grinding drive motor 32 for driving the grinding belt 31 to rotate.

[0042] The present invention is mainly used for surface grinding of solid stainless steel pipe fittings. It can use the grinding belt to remove rust from the product surface, and can also grind and clean the product surface, and can also perform surface polishing. In actual use, the product is placed on the product support positioning groove, the product claw plate clamps the end of the product, and then the grinding part is driven to drive the grinding belt to rotate. In this process, the grinding belts on the left and right sides of the product are respectively in contact with the two sides of the product, and then the product is driven to rotate by the product driving part, and the outer surface of a position of the product is polished by the grinding part. At the same time, during the rotation of the product, the product chuck will gradually move away from the support groove, so that the grinding belt and each position of the product are in contact and polished, thereby achieving the action of rust removal, grinding or polishing of the outer surface of the product. In this method, the efficiency is high, the labor intensity of the operator is low, and the grinding effect is also good.

[0043] See also Figure 1 、 2 As shown, the support groove 11 is provided with two groups of symmetrical inclined surfaces 12, each of the inclined surfaces 12 is arranged to be inclined outward from bottom to top; wherein, the inclined surface on the left is arranged to be inclined to the left from bottom to top, and the inclined surface on the right is arranged to be inclined to the right from bottom to top.

[0044] A plurality of supporting balls 13 are rotatably provided on each of the inclined surfaces 12 , and the supporting balls are steel balls.

[0045] The two inclined surfaces form a V-shaped structure. When a columnar product is placed in the support slot, the inclined surfaces provide support and positioning on both sides, preventing it from rolling or falling, while also keeping it centered within the slot. This facilitates smooth rotation and axial movement of the product within the slot, reduces friction between the product and the slot, and reduces the force required to drive the product's rotation and movement. This reduces the power required to drive the product, lowering its cost. Furthermore, it eliminates noise from rigid friction and prevents wear between the product and the slot.

[0046] See also Figure 1 As shown, the product driving unit 2 includes a first support frame 23, a first linear driving unit and a first rotary driving unit. The first rotary driving unit includes a product claw plate 22, a first rotary motor 24 and a first slide 25. The first slide 25 is linearly movable and arranged on the first support frame 23. The product claw plate 22 is rotatably connected to the first slide 25. The first rotary motor 24 is installed on the first slide 25. The first rotary motor 24 drives the product claw plate 22 to rotate.

[0047] The first linear drive unit includes a first motor 26 and a first ball screw 27. A first linear slide 28 is provided on the first support frame 23. The first ball screw 27 is arranged on the first support frame 23 next to the first linear slide 28 for parallel rotation. The first slide 25 is slidably set on the first linear slide 28. The first ball screw 27 is connected to the first slide 25. The first motor 26 drives the first ball screw 27 to rotate, so that the product claw plate 22 moves longitudinally towards or away from the support groove 11.

[0048] In this embodiment, the product claw plate is used to clamp the end of the product, and the first rotating motor is used to drive the product claw plate to rotate, thereby driving the product to rotate on the support groove, and the first motor drives the first ball screw to rotate. The first ball screw is connected to the first slide through the screw pair. Through the rotation of the first ball screw, the product drive part can be driven to move, and then the contact position between the product and the grinding belt can be adjusted to achieve surface treatment of the product at various circumferential and axial positions, and the moving speed is controllable and the precision is also high.

[0049] Among them, product claw plates of different sizes, first rotating motors and first slides of different heights can be selected according to the size of the product to ensure that the product claw plate can clamp the product smoothly and the outer surface of the product will rest against the support surface of the support groove.

[0050] See also Figure 1 As shown, the bottom of the grinding part 3 is slidably arranged on a bottom plate 33, and a transverse slide rail 34 is provided on both sides of the grinding interval 21. Each of the grinding parts 3 is slidably arranged on one side of the transverse slide rail 34.

[0051] A transverse driving mechanism is provided on the bottom plate, and the transverse driving mechanism drives the two groups of grinding parts to move toward or away from each other transversely.

[0052] The transverse drive mechanism adopts a combination of a transverse motor 35 and a forward and reverse transverse screw 36. The two sides of the middle of the forward and reverse transverse screw are respectively provided with screw threads with opposite spiral directions. The two ends of the forward and reverse transverse screw are rotatably connected to the base plate, and are arranged parallel to the side of the transverse slide rail. The two sides of the middle of the forward and reverse transverse screw are respectively connected to the two groups of grinding parts. The transverse motor drives the forward and reverse transverse screws to rotate. Through the rotation of the forward and reverse transverse screws, the two groups of grinding parts are driven to be close to the product or away from the product at the same time. When the product is placed or replaced, the grinding part will be driven to move outward away from the grinding distance, which is convenient for placing or removing the product. When grinding is required, the two groups of grinding parts are driven to move inward at the same time close to the grinding distance, so that the grinding belts on both sides are in contact with the two side surfaces of the product respectively, and the outer surfaces of both sides of the product are polished at the same time, thereby improving the grinding efficiency and grinding effect. Among them, the bottom of the first support frame is installed on the base plate, and the bottom of the product support part is also installed on the base plate.

[0053] See also Figure 3 As shown, the grinding part 3 includes a bracket 37, a grinding drive motor 32 installed on the bracket 37, a grinding belt 31 and multiple supporting rollers. A driving wheel 38 is provided on the output shaft of the grinding drive motor 32. The grinding belt 31 is wound around the multiple supporting rollers and the driving wheel 38. When the driving wheel rotates, it drives the grinding belt to rotate.

[0054] In this embodiment, the axis of the driving wheel is parallel to the axis of the supporting roller, the supporting roller and the bracket are rotatably connected, and the grinding belt is wrapped around the supporting rod and the driving wheel, so that the driving wheel rotates, driving the grinding belt to rotate, thereby achieving grinding of the product surface.

[0055] See also Figure 3 As shown, the support roller includes two inner support rollers 39 and a tension adjustment roller 40. The grinding drive motor 32 is arranged near the outer end of the bracket 37. The two inner support rollers 39 are connected to the inner end of the bracket 37 through a connecting member 41. The tension adjustment roller 40 is rotatably connected to the upper middle part of the bracket through an adjustment plate 42.

[0056] The distance between the two inner support rollers will be facing the product, so that when the grinding part is close to the grinding distance, the grinding belt between the two inner support rollers will contact the product, which can make the product and the grinding mechanism in flexible contact rather than rigid contact. That is, when the grinding belt contacts the product, if the extrusion force is large, the grinding belt between the two inner support rollers can be squeezed toward between the two inner support rollers. Since the length of the grinding belt is fixed, the setting of the tension adjustment roller and the change of the grinding belt position will drive the tension adjustment roller to adjust its position synchronously. When the extrusion force gradually decreases, the position of the tension adjustment roller will gradually return to its original position. In the normal state, the inner side surfaces of the two inner support rollers constitute one square meter. Therefore, the grinding belt at this location is also flat. If it is subjected to the squeezing force of the product, the grinding belt at this location will be concave in an arc shape toward the space between the two inner support rollers. In this way, the contact area between the grinding belt and the product can be increased to ensure the grinding effect. Of course, with this contact method, the grinding force of the grinding belt on the product will be smaller, but the wear of the grinding belt will be smaller and the service life will be longer.

[0057] See also Figure 1 、 3 As shown, the tension adjustment roller 40 is rotatably connected to the middle portion of the adjustment plate 42, and the outer end of the adjustment plate 42 is rotatably connected to the bracket 37;

[0058] A gas spring 43 is further provided. The fixed end at the bottom of the gas spring 43 is rotatably connected to the bracket 37 , and the output end at the top of the gas spring 43 is rotatably connected to the inner end of the adjustment plate 42 .

[0059] The gas spring is used to give tension to the adjusting plate. No matter what kind of deformation occurs in the grinding belt at the two inner support rollers, the grinding belt can always be in a tensioned state. When the grinding belt loses the product extrusion force at this point, the gas spring automatically extends and returns to its original position, so that the grinding belt at the two inner support rollers will form a straight plane.

[0060] See also Figure 1 、 3 As shown, the two inner support rollers 39 are rotatably disposed at the top and bottom of the inner end of the connecting member 41 respectively;

[0061] The middle portion of the inner end of the connecting member 41 is connected to the bracket 37 via a first locking member 44 , and the middle portion of the outer end of the connecting member 41 is connected to the bracket 37 via a second locking member 45 ;

[0062] The connecting member 41 is provided with an arcuate groove 46 coaxially arranged with the first locking member 44 , and the second locking member 45 is inserted into the arcuate groove 46 .

[0063] Among them, you can choose the corresponding connector according to the size of the product. For large-sized products, the distance between the top and bottom of the inner end of the connector is larger. For small-sized products, you can choose a smaller distance between the top and bottom of the inner end of the connector.

[0064] There are two ways to connect the connecting member and the bracket: the first way: the first locking attachment and the second locking attachment fix the connecting member and the bracket. In this way, the positions of the two inner support rollers are fixed during the grinding process.

[0065] In this way, the second locking member fixes the connecting member and the bracket, but the first locking member plays a positioning role. If the second locking member is not locked, the connecting member can also be rotated and connected to the bracket through the first locking member.

[0066] The second method involves the connector being pivotally connected to the bracket via the first locking element, while the second locking element limits the connector's rotational angle relative to the bracket. In this method, the connector is pivotally connected to the bracket via the first locking element, while the second locking element and the arcuate groove limit the connector's rotational angle. The second locking element simply sits within the arcuate groove and does not securely lock the connector to the bracket. In this method, the two inner support rollers float relative to the product during the polishing process, automatically compensating for the contact area between the polishing belt and the product based on the height difference between the bracket and the product, ensuring that the polishing belt remains in contact with the product.

[0067] Both methods are acceptable. The connection between the second locking member and the bracket can be adjusted according to the actual situation. If the second locking member is not completely locked with the bracket, the connecting member can rotate relative to the bracket. If the second locking member is completely locked with the bracket, the connecting member and the bracket are locked and fixed, and the connecting member cannot rotate relative to the bracket.

[0068] Example 2: See Figure 4 As shown, a surface grinding device for stainless steel pipe fittings has a structure basically similar to that of embodiment 1, except that a reinforcing plate 47 is further provided in the middle of the connecting member 41, and the reinforcing plate is arranged between the two inner support rollers, and the inner end surface of the reinforcing plate is arranged close to the inner surface of the grinding belt, or the inner end surface of the reinforcing plate is in contact with the inner surface of the grinding belt.

[0069] In this method, when the product contacts the grinding belt, the product will push the grinding belt against the reinforcing plate. At this time, only the cross-section tangent to the product contacts the grinding belt. The single-sided grinding area is small, but the grinding force is large and the grinding intensity is also stronger. The method of this embodiment or the method in embodiment 1 can be selected according to actual conditions.

Claims

1. A stainless steel pipe surface grinding device, characterized by: include: A product support portion, wherein the product support portion is provided with a support groove for supporting the product; A product driving portion, the product driving portion is arranged at the front end of the product supporting portion, a grinding distance is defined between the product driving portion and the product supporting portion, and a product claw disc is provided on the product driving portion, the product driving portion drives the product claw disc to approach and move away from the supporting groove, and drives the product claw disc to rotate; The grinding part is divided into two groups, and the two groups of grinding parts are symmetrically arranged on the left and right sides of the grinding distance; the grinding part is provided with a grinding belt and a grinding drive motor for driving the grinding belt to rotate.

2. The stainless steel pipe surface grinding device according to claim 1, characterized in that: The support groove is provided with two sets of symmetrical inclined surfaces, each of which is inclined outward from bottom to top; A plurality of supporting balls are rotatably arranged on each of the inclined surfaces.

3. The stainless steel pipe surface grinding device according to claim 1, characterized in that: The product driving unit includes a first support frame, a first linear driving unit and a first rotary driving unit. The first rotary driving unit includes a product claw plate, a first rotary motor and a first slide. The first slide is linearly movable on the first support frame. The product claw plate is rotatably connected to the first slide. The first rotary motor is installed on the first slide. The first rotary motor drives the product claw plate to rotate. The first linear drive unit includes a first motor and a first ball screw. A first linear slide rail is provided on the first support frame. The first ball screw is arranged on the first support frame beside the first linear slide rail for parallel rotation. The first slide is slidably arranged on the first linear slide rail. The first ball screw is connected to the first slide. The first motor drives the first ball screw to rotate, so that the product claw plate moves longitudinally towards or away from the support groove.

4. The stainless steel pipe surface grinding device according to claim 1, characterized in that: The bottom of the grinding part is slidably arranged on a bottom plate, and transverse slide rails are respectively provided on both sides of the grinding interval, and each grinding part is slidably arranged on one side of the transverse slide rail; A transverse driving mechanism is provided on the bottom plate, and the transverse driving mechanism drives the two groups of grinding parts to move toward or away from each other transversely.

5. The stainless steel pipe surface grinding device according to claim 1, characterized in that: The grinding part includes a bracket, a grinding drive motor installed on the bracket, a grinding belt and multiple supporting rollers. A driving wheel is provided on the output shaft of the grinding drive motor. The grinding belt is wound around the multiple supporting rollers and the driving wheel. When the driving wheel rotates, the grinding belt is driven to rotate.

6. The stainless steel pipe surface grinding device according to claim 5, characterized in that: The support roller includes two inner support rollers and a tension adjustment roller. The grinding drive motor is arranged near the outer end of the bracket. The two inner support rollers are connected to the inner end of the bracket via a connecting piece. The tension adjustment roller is rotatably connected to the upper middle part of the bracket via an adjustment plate.

7. The stainless steel pipe surface grinding device according to claim 6, characterized in that: The two inner support rollers are rotatably arranged at the top and bottom of the inner end of the connecting member respectively; The middle portion of the inner end of the connecting member is connected to the bracket via a first locking member, and the middle portion of the outer end of the connecting member is connected to the bracket via a second locking member; The connecting piece is provided with an arc groove coaxially arranged with the first locking piece, and the second locking piece is inserted into the arc groove.

8. The stainless steel pipe surface grinding device according to claim 7, characterized in that: The first locking member and the second locking member securely connect the connecting member to the bracket; Alternatively, the connecting member is rotatably connected to the bracket via the first locking member, and the second locking member limits the rotation angle of the connecting member relative to the bracket.

9. The stainless steel pipe surface grinding device according to claim 7, characterized in that: A reinforcing plate is also provided in the middle of the connecting member, and the reinforcing plate is arranged between the two inner support rollers. The inner end surface of the reinforcing plate is arranged close to the inner surface of the grinding belt, or the inner end surface of the reinforcing plate contacts the inner surface of the grinding belt.

10. The stainless steel pipe surface grinding device according to claim 6, characterized in that: The tension adjustment roller is rotatably connected to the middle portion of the adjustment plate, and the outer end of the adjustment plate is rotatably connected to the bracket; A gas spring is also provided, wherein the fixed end at the bottom of the gas spring is rotatably connected to the bracket, and the output end at the top of the gas spring is rotatably connected to the inner end of the adjustment plate.

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