Positioning device

Abstract

The utility model discloses a positioning device which is characterized by comprising a machine frame, a left side limiting mechanism and a material pressing mechanism, the left side limiting mechanism and the material pressing mechanism are installed on the machine frame, and a product placing position is arranged on the machine frame. The left side limiting mechanism is arranged on the left side of the product placing position, the left side limiting mechanism comprises a left side pressing plate and a left side driving part, and the left side driving part is configured to drive the left side pressing plate to move transversely and enable the left side pressing plate to be close to or away from the product placing position; the material pressing mechanism comprises a pressing plate, a jacking air cylinder and a right side support, the jacking air cylinder and the right side support are arranged on the right side of the product containing position, the right side support is arranged between the product containing position and the jacking air cylinder, and the middle of the pressing plate is rotationally connected with the right side support. The right end of the pressing plate is rotationally connected with an output shaft of the jacking air cylinder. According to the utility model, the positioning efficiency and quality are improved, and the product processing quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel forging production and processing, and in particular to a positioning device. Background Technology

[0002] Stainless steel forgings are used in various industries, such as in equipment. To facilitate the fixing of these parts or their connection with other components, holes need to be drilled and tapped after the stainless steel forgings are manufactured, allowing for subsequent connection with other parts.

[0003] In conventional drilling and tapping methods, the product is placed under the drill bit of a machining center or drilling machine and positioned using a vise. This positioning method is relatively inefficient, and only one face can be drilled or tapped at a time. If a specialized machine with multiple drilling mechanisms is used, the positioning efficiency will still be low if a vise is still used for product positioning. Manual clamping of the vise may sometimes result in insufficient clamping, affecting the positioning strength and the stability of drilling and tapping. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning device that enables stable positioning of products, facilitates the stability of product drilling and tapping, and improves positioning efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a positioning device, including a frame, a left-side limiting mechanism and a pressing mechanism installed on the frame, wherein the frame is provided with a product placement position;

[0006] The left limiting mechanism is located on the left side of the product placement position. The left limiting mechanism includes a left pressure plate and a left driving part. The left driving part is configured to drive the left pressure plate to move laterally and to move the left pressure plate closer to or further away from the product placement position.

[0007] The pressing mechanism includes a pressure plate, a lifting cylinder, and a right-side bracket. The lifting cylinder and the right-side bracket are located on the right side of the product placement position. The right-side bracket is located between the product placement position and the lifting cylinder. The middle part of the pressure plate is rotatably connected to the right-side bracket, and the right end of the pressure plate is rotatably connected to the output shaft of the lifting cylinder. When the output shaft of the lifting cylinder is retracted, the left side of the pressure plate is located above the right side of the product placement position. When the output shaft of the lifting cylinder is extended, the left end of the pressure plate is located directly above the product placement position.

[0008] In the above technical solution, the left driving part includes a longitudinal cylinder and an intermediate connecting part. The longitudinal cylinder is longitudinally arranged on the frame. The output shaft of the longitudinal cylinder is connected to the left pressure plate through the intermediate connecting part. When the output shaft of the longitudinal cylinder is extended or retracted, it drives the left pressure plate to move to the right or left through the intermediate connecting part.

[0009] In the above technical solution, the intermediate connecting part includes a left connecting member and a right connecting member. The front end of the left connecting member is connected to the output shaft of the longitudinal cylinder, and the right end of the right connecting member is connected to the left side of the left pressure plate.

[0010] The right side of the left connector includes a first plane, a connecting slope, and a second plane connected sequentially from back to front. The left side of the left connector is slidably connected to the frame. The first plane and the second plane are arranged parallel to each other. The first plane is located on the left rear side of the second plane. The connecting slope is arranged inclined to the right from back to front. The two ends of the connecting slope are connected to the first plane and the second plane respectively.

[0011] The right-side connector includes a right-side connecting rod, a roller, a roller mounting part, and a spring. A left-side upright is provided on the frame to the left of the left-side pressure plate. The middle part of the right-side connecting rod is slidably connected to the left-side upright. The right-side connecting rod is perpendicular to the left-side connector. The roller mounting part is installed on the left end of the right-side connecting rod. The roller is rotatably connected to the roller mounting part. The spring is sleeved on the right-side connecting rod. The left side of the spring abuts against the roller mounting part, and the right end of the spring abuts against the left side surface of the left-side upright. The left outer surface of the roller abuts against the right side surface of the left-side connector.

[0012] In the above technical solution, two transverse guide rods are also provided. The two transverse guide rods are respectively arranged parallel to each other on both sides of the right connecting rod. The middle part of the transverse guide rod is slidably connected to the left upright frame, and the right end of the transverse guide rod is perpendicularly connected to the left pressure plate.

[0013] In the above technical solution, a notch is provided on the left side of the roller mounting part, and the middle part of the roller is rotatably connected to the notch;

[0014] The spring pushes the right connecting rod to move to the left, so that the left outer surface of the roller abuts against the right side of the left connecting member.

[0015] In the above technical solution, the frame is provided with a right side upright plate, and the right side of the product placement position is flush with the left side of the right side upright plate;

[0016] A positioning pin is also provided, and a positioning hole is provided in the middle of the right upright plate, and the left side of the positioning pin is inserted into the positioning hole.

[0017] The frame is equipped with a transverse cylinder. The output shaft of the transverse cylinder is connected to the right end of the positioning pin. When the output shaft of the transverse cylinder is retracted, the left end of the positioning pin is retracted into the positioning hole. When the output shaft of the transverse cylinder is extended, the left end of the positioning pin extends out of the positioning hole and is inserted into the product placement position.

[0018] In the above technical solution, the positioning pin is located on the front side of the pressure plate, and a positioning block is also provided on the right side of the right upright plate. The left end of the transverse cylinder is connected to the right end face of the positioning block, and the right end of the positioning pin is slidably connected to the positioning block.

[0019] In the above technical solution, the left end of the positioning pin is provided with an arc-shaped head.

[0020] In the above technical solution, the top of the product placement position is connected to the top surface of the frame, a through groove is provided on the left side of the product placement position, the right end of the through groove is connected to the product placement position, and the top and bottom of the through groove are connected to the top and bottom surfaces of the frame, respectively.

[0021] The bottom of the product placement position is also provided with a clearance groove, which is connected to the bottom surface of the frame.

[0022] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0023] 1. In this utility model, a pressure plate is used to quickly position the product on the left and right sides, and the pressure plate is used to limit the top of the product. This ensures that the product position will not shake when processing is carried out from different positions at the same time, and ensures the stability of drilling and tapping.

[0024] 2. In this utility model, a cylinder-driven structure is used to quickly limit the product, thereby achieving rapid product positioning and improving positioning efficiency;

[0025] 3. The present invention also includes a positioning pin, which can further limit the positioning based on the left pressure plate and the pressure plate, thereby improving the positioning stability and firmness. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure in Embodiment 1 of this utility model;

[0027] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure.

[0028] The components are: 1. Frame; 2. Product placement position; 3. Left side pressure plate; 4. Pressure plate; 5. Lifting cylinder; 6. Right side bracket; 7. Longitudinal cylinder; 8. Left side connector; 9. First plane; 10. Connecting slope; 11. Second plane; 12. Right side connecting rod; 13. Roller; 14. Roller mounting part; 15. Spring; 16. Left side upright; 17. Transverse guide rod; 18. Right side upright plate; 19. Positioning pin; 20. Positioning hole; 21. Transverse cylinder; 22. Positioning block; 23. Through groove; 24. Relief groove. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] Example 1: See Figure 1 , 2 As shown, a positioning device includes a frame 1, a left limiting mechanism and a pressing mechanism mounted on the frame 1, and a product placement position 2 is provided on the frame;

[0031] The left limiting mechanism is located on the left side of the product placement position 2. The left limiting mechanism includes a left pressure plate 3 and a left driving part. The left driving part is configured to drive the left pressure plate 3 to move laterally and to move the left pressure plate 3 closer to or further away from the product placement position 2.

[0032] The pressing mechanism includes a pressure plate 4, a lifting cylinder 5, and a right-side bracket 6. The lifting cylinder 5 and the right-side bracket 6 are located on the right side of the product placement position 2. The right-side bracket 6 is located between the product placement position 2 and the lifting cylinder 5. The middle part of the pressure plate 4 is rotatably connected to the right-side bracket 6, and the right end of the pressure plate 4 is rotatably connected to the output shaft of the lifting cylinder 5. When the output shaft of the lifting cylinder 5 is retracted, the left side of the pressure plate 4 is located above the right side of the product placement position 2. When the output shaft of the lifting cylinder 5 is extended, the left end of the pressure plate 4 is located directly above the product placement position 2.

[0033] In this embodiment, the top of the product placement position is connected to the top surface of the frame. In actual use, the product to be processed can be placed directly on the product placement position by a person or a robot. Then, the left drive unit drives the left pressure plate to move to the right, confining the product within the product placement position. The output shaft of the lifting cylinder extends, pushing the left end of the pressure plate downward to press down the top of the product before processing. For example, when drilling holes in the bottom of the product from bottom to top, the presence of the pressure plate prevents the product from moving upward, ensuring drilling accuracy and quality. When drilling holes in the front and rear positions, the pressure of the left pressure plate and the pressure of the pressure plate combination also prevents the product from shifting, ensuring the drilling effect. After drilling is completed, the left drive unit drives the left pressure plate to move to the left to detach from the product. The output shaft of the lifting cylinder retracts, causing the pressure plate to rotate clockwise around the bracket, so that the left side of the pressure plate rotates to the upper right of the product. When the robot picks up the material from top to bottom, the pressure plate will not affect the robot's picking and unloading operations. Meanwhile, in this embodiment, the right end of the pressure plate is rotatably connected to the output shaft of the lifting cylinder via a right-end rotating shaft. A strip groove is provided on the right end of the pressure plate. The length of the strip groove is greater than the diameter of the right-end rotating shaft, and the width is adapted to the width of the strip groove. The right-end rotating shaft is inserted into the strip groove. In this way, the bottom of the lifting cylinder is fixedly installed on the frame. When the output shaft of the lifting cylinder extends and retracts, it drives the pressure plate to rotate around the right side bracket. The right end of the pressure plate will change its lateral position. Therefore, the strip groove is provided so that when the output shaft of the lifting cylinder extends and retracts, it stably drives the pressure plate to rotate through the right-end rotating shaft and the strip groove.

[0034] See Figure 1 , 2 As shown, the left drive unit includes a longitudinal cylinder 7 and an intermediate connecting part. The longitudinal cylinder 7 is longitudinally arranged on the frame 1. The output shaft of the longitudinal cylinder 7 is connected to the left pressure plate 3 via the intermediate connecting part. When the output shaft of the longitudinal cylinder is extended or retracted, it drives the left pressure plate 3 to move to the right or left via the intermediate connecting part.

[0035] The intermediate connecting part includes a left connecting member 8 and a right connecting member. The front end of the left connecting member is connected to the output shaft of the longitudinal cylinder, and the right end of the right connecting member is connected to the left side of the left pressure plate.

[0036] The right side of the left connector 8 includes a first plane 9, a connecting slope 10, and a second plane 11 connected sequentially from back to front. The left side of the left connector 8 is longitudinally slidably connected to the frame 1. The first plane 9 and the second plane 11 are arranged parallel to each other. The first plane 9 is located on the left rear side of the second plane 11. The connecting slope 10 is arranged inclined to the right from back to front. The two ends of the connecting slope 10 are respectively connected to the first plane 9 and the second plane 11.

[0037] The right-side connector includes a right-side connecting rod 12, a roller 13, a roller mounting part 14, and a spring 15. A left-side upright 16 is provided on the frame 1 on the left side of the left-side pressure plate 3. The middle part of the right-side connecting rod 12 is slidably connected to the left-side upright 16. The right-side connecting rod 12 is set perpendicular to the left-side connector 8. The roller mounting part 14 is installed on the left end of the right-side connecting rod 12. The roller 13 is rotatably connected to the roller mounting part 14. The spring 15 is sleeved on the right-side connecting rod 12. The left side of the spring 15 abuts against the roller mounting part 14, and the right end of the spring 15 abuts against the left side surface of the left-side upright 16. The left outer surface of the roller 13 abuts against the right side surface of the left-side connector 8.

[0038] In one embodiment, if a horizontal cylinder is used to directly move the left-side pressure plate of the tube, the cylinder pressure will not be particularly high due to the air supply. In cases of unstable air pressure or significant external force during product processing, the left-side pressure plate may cause the cylinder to retract, resulting in insecure product positioning. Therefore, in this embodiment, a vertical cylinder is used to drive the left-side connector to move back and forth. A first plane, a second plane, and a connecting slope are provided on the right side of the left-side connector. The first and second planes are parallel to the output shaft of the vertical cylinder, while the connecting slope is inclined. When the spring is normally extended, it pushes the roller mounting part to the left, which in turn drives the left-side pressure plate to the left via the right-side connecting rod. This moves the left-side pressure plate away from the product, and the left outer surface of the roller remains in contact with the right side of the left-side connector. When the product needs to be clamped, the left outer surface of the roller abuts against the first plane. The output shaft of the longitudinal cylinder is in a retracted state. Then, the output shaft of the longitudinal cylinder extends and pushes the left connecting piece to move backward. Since the longitudinal position of the roller does not change (i.e., it does not move back and forth, but can only move left and right), when the connecting slope and the roller come into contact, the roller will be pushed to the right by the connecting slope because the connecting slope is set to the right from back to front. It will also push the left pressure plate to move to the right through the roller mounting part and the right connecting rod (at this time, the spring will be compressed through the roller mounting part and the left upright). When the left pressure plate abuts against the left side of the product, the left outer surface of the roller comes into contact with the second plane. Then, the longitudinal cylinder continues to drive the left connecting piece to move backward a certain distance, so that the roller continues to come into contact with the second plane. However, at this time, the left pressure plate will not continue to move to the right. In this method, even if the air pressure is unstable or other situations occur, the output shaft of the longitudinal cylinder will not automatically retract, or will retract a small distance. At this time, the roller will always be in contact with the second plane, and the left pressure plate will not move to the left, which can ensure the limiting force and stability of the left pressure plate on the product.

[0039] When the left pressure plate contacts and limits the product, the output shaft of the longitudinal cylinder retracts, causing the left connecting part to move forward. That is, the second plane, the connecting inclined plane, and the first plane move forward until the first plane is directly opposite the roller. At this time, since the spring is in a compressed state, its restoring force will always be given to the roller mounting part, and push the roller mounting part to move to the left, so that the roller is always in contact with the right side of the left connecting part. At the same time, it also causes the left pressure plate to move to the left and separate from the product, releasing the product from the limit.

[0040] See Figure 1 , 2 As shown, two transverse guide rods 17 are also provided. The two transverse guide rods 17 are respectively arranged parallel to each other on both sides of the right connecting rod 12. The middle part of the transverse guide rod 17 is slidably connected to the left upright frame 16, and the right end of the transverse guide rod 17 is perpendicularly connected to the left pressure plate 3.

[0041] Based on the lateral movement guide of the left pressure plate by the right connecting rod, two more lateral guide rods are set to further guide the lateral movement of the pressure plate. This allows the pressure plate to be reinforced by the lateral guide rods when the product is subjected to force during processing and transmitted to the left pressure plate. The radial force transmitted from the left pressure plate to the right connecting rod can also be distributed on the lateral guide rods, preventing deformation of the right connecting rod, extending its service life, and reducing the maintenance rate.

[0042] See Figure 2 As shown, a notch is provided on the left side of the roller mounting part, and the middle part of the roller is rotatably connected to the notch;

[0043] The spring pushes the right connecting rod to move to the left, so that the left outer surface of the roller abuts against the right side of the left connecting member.

[0044] The notch design creates a U-shaped structure with the roller mounting section opening to the left. The roller is installed inside the notch, and the left outer surface of the roller is located outside the left side of the notch, which facilitates the installation of the roller.

[0045] See Figure 1 , 2 As shown, the frame 1 is provided with a right side upright plate 18, and the right side of the product placement position 2 is flush with the left side of the right side upright plate 18.

[0046] A positioning pin 19 is also provided, and a positioning hole 20 is provided in the middle of the right upright plate 18. The left side of the positioning pin 19 is inserted into the positioning hole 20.

[0047] The frame is equipped with a transverse cylinder 21. The output shaft of the transverse cylinder is connected to the right end of the positioning pin. When the output shaft of the transverse cylinder is retracted, the left end of the positioning pin is retracted into the positioning hole. When the output shaft of the transverse cylinder is extended, the left end of the positioning pin extends out of the positioning hole and is inserted into the product placement position.

[0048] The product has a hole in the middle. More preferably, to prevent movement during drilling and tapping due to insufficient friction between the product and the left pressure plate and right upright plate, a locating pin is also provided. After the product is placed in the product placement position, the output shaft of the transverse cylinder extends, allowing the locating pin to insert into the hole in the product, limiting its movement. At this point, the pressure from the left pressure plate on the product can be further reduced to prevent lateral movement. The locating hole provides positioning and support for the locating pin. When the product is subjected to external forces (front, back, up, down) and these forces are transmitted to the locating pin, the locating hole supports and limits the pin, preventing direct transmission to the output shaft of the transverse cylinder. This prevents damage to the transverse cylinder, extends its service life, and reduces the maintenance rate. Simultaneously, the locating pin also allows for precise positioning of the product, ensuring that the area to be processed aligns perfectly with the drilling and tapping components, guaranteeing processing accuracy and quality.

[0049] See Figure 1 , 2 As shown, the positioning pin 19 is located on the front side of the pressure plate, and a positioning block 22 is also provided on the frame on the right side of the right upright plate 18. The left end of the transverse cylinder is connected to the right end face of the positioning block, and the right end of the positioning pin is slidably connected to the positioning block.

[0050] The positioning block also has holes that match the positioning pin. The positioning block and positioning holes are used to support and limit the positioning pin, which is used to resist the external force transmitted to the positioning pin during product processing and to prevent the positioning pin from transmitting the external force to the transverse cylinder.

[0051] The left end of the positioning pin is equipped with an arc-shaped head. The left side dimension of the arc-shaped head is smaller than the outer diameter of the positioning pin. If the product is not completely and accurately positioned when placed in the product placement position, the arc-shaped head is first inserted into the product hole. The arc-shaped head guides the product to the correct position, with the bottom of the product resting against the bottom surface of the product placement position. The arc-shaped head can then move the product back and forth until the positioning pin is inserted into the product. This enables the product to move automatically and accurately into position, ensuring the accuracy and quality of subsequent processing.

[0052] See Figure 1 , 2As shown, the top of the product placement position 2 is connected to the top surface of the frame, and a through groove 23 is provided on the left side of the product placement position. The right end of the through groove 23 is connected to the product placement position 2, and the top and bottom of the through groove 23 are connected to the top and bottom surfaces of the frame 1, respectively.

[0053] The bottom of the product placement position 2 is also provided with a clearance groove 24, which is connected to the bottom surface of the frame 1.

[0054] The top of the product placement area is connected to the top surface of the frame, facilitating manual or automatic product placement from above. The through-slot reduces frame material usage and lowers costs, while the clearance slot allows the drilling or tapping mechanism below to directly process the product.

[0055] Meanwhile, in this utility model, the front and rear sides of the product placement position are connected to the front and rear sides of the frame, respectively. In this way, processing mechanisms (drilling and tapping mechanisms) can be set on the front, rear, top and bottom sides of the product placement position, and the four sides of the product can be processed at the same time, which improves processing efficiency and positioning efficiency.

Claims

1. A positioning device, characterized in that: It includes a frame, a left-side limiting mechanism and a pressing mechanism mounted on the frame, and the frame is provided with a product placement position; The left limiting mechanism is located on the left side of the product placement position. The left limiting mechanism includes a left pressure plate and a left driving part. The left driving part is configured to drive the left pressure plate to move laterally and to move the left pressure plate closer to or further away from the product placement position. The pressing mechanism includes a pressure plate, a lifting cylinder, and a right-side bracket. The lifting cylinder and the right-side bracket are located on the right side of the product placement position. The right-side bracket is located between the product placement position and the lifting cylinder. The middle part of the pressure plate is rotatably connected to the right-side bracket, and the right end of the pressure plate is rotatably connected to the output shaft of the lifting cylinder. When the output shaft of the lifting cylinder is retracted, the left side of the pressure plate is located above the right side of the product placement position. When the output shaft of the lifting cylinder is extended, the left end of the pressure plate is located directly above the product placement position.

2. The positioning device according to claim 1, characterized in that: The left drive unit includes a longitudinal cylinder and an intermediate connecting part. The longitudinal cylinder is longitudinally arranged on the frame. The output shaft of the longitudinal cylinder is connected to the left pressure plate via the intermediate connecting part. When the output shaft of the longitudinal cylinder is extended or retracted, it drives the left pressure plate to move to the right or left via the intermediate connecting part.

3. The positioning device according to claim 2, characterized in that: The intermediate connecting part includes a left connecting member and a right connecting member. The front end of the left connecting member is connected to the output shaft of the longitudinal cylinder, and the right end of the right connecting member is connected to the left side of the left pressure plate. The right side of the left connector includes a first plane, a connecting slope, and a second plane connected sequentially from back to front. The left side of the left connector is slidably connected to the frame. The first plane and the second plane are arranged parallel to each other. The first plane is located on the left rear side of the second plane. The connecting slope is arranged inclined to the right from back to front. The two ends of the connecting slope are connected to the first plane and the second plane respectively. The right-side connector includes a right-side connecting rod, a roller, a roller mounting part, and a spring. A left-side upright is provided on the frame to the left of the left-side pressure plate. The middle part of the right-side connecting rod is slidably connected to the left-side upright. The right-side connecting rod is perpendicular to the left-side connector. The roller mounting part is installed on the left end of the right-side connecting rod. The roller is rotatably connected to the roller mounting part. The spring is sleeved on the right-side connecting rod. The left side of the spring abuts against the roller mounting part, and the right end of the spring abuts against the left side surface of the left-side upright. The left outer surface of the roller abuts against the right side surface of the left-side connector.

4. The positioning device according to claim 3, characterized in that: Two horizontal guide rods are also provided, which are respectively arranged parallel to each other on both sides of the right connecting rod. The middle part of the horizontal guide rod is slidably connected to the left upright, and the right end of the horizontal guide rod is perpendicularly connected to the left pressure plate.

5. The positioning device according to claim 3, characterized in that: A notch is provided on the left side of the roller mounting part, and the middle part of the roller is rotatably connected to the notch; The spring pushes the right connecting rod to move to the left, so that the left outer surface of the roller abuts against the right side of the left connecting member.

6. The positioning device according to claim 1, characterized in that: The frame is provided with a right side upright plate, and the right side of the product placement position is flush with the left side of the right side upright plate; A positioning pin is also provided, and a positioning hole is provided in the middle of the right upright plate, and the left side of the positioning pin is inserted into the positioning hole. The frame is equipped with a transverse cylinder. The output shaft of the transverse cylinder is connected to the right end of the positioning pin. When the output shaft of the transverse cylinder is retracted, the left end of the positioning pin is retracted into the positioning hole. When the output shaft of the transverse cylinder is extended, the left end of the positioning pin extends out of the positioning hole and is inserted into the product placement position.

7. The positioning device according to claim 6, characterized in that: The positioning pin is located on the front side of the pressure plate, and a positioning block is also provided on the right side of the right upright plate. The left end of the transverse cylinder is connected to the right end face of the positioning block, and the right end of the positioning pin is slidably connected to the positioning block.

8. The positioning device according to claim 6, characterized in that: The left end of the positioning pin has an arc-shaped head.

9. The positioning device according to claim 1, characterized in that: The top of the product placement position is connected to the top surface of the frame. A through groove is provided on the left side of the product placement position. The right end of the through groove is connected to the product placement position. The top and bottom of the through groove are connected to the top and bottom surfaces of the frame, respectively. The bottom of the product placement position is also provided with a clearance groove, which is connected to the bottom surface of the frame.

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