Clamping positioning device

Abstract

The application discloses a clamping positioning device, which comprises a supporting assembly, a clamping assembly and a lifting control assembly, the supporting assembly has a supporting surface, the clamping assembly is located above the supporting surface, the lifting control assembly is located above the supporting surface and is connected with the clamping assembly, the lifting control assembly comprises a guide pin and a lifting control pin, the guide pin penetrates the clamping assembly and protrudes from the surface of the clamping assembly close to the lifting control assembly, the guide pin is provided with a lifting control groove, the lifting control groove is located at one end of the guide pin exposed to the clamping assembly, the lifting control groove penetrates through the opposite two side surfaces of the guide pin, the lifting control pin is arranged in the lifting control groove, and the lifting control pin is used for controlling the lifting of the guide pin to control the clamping or releasing of the workpiece by the clamping assembly. The clamping positioning device provided by the application has simple operation mode and high operation efficiency.

Description

Technical Field

[0001] This application relates to the field of clamping tool technology, and in particular to a clamping and positioning device. Background Technology

[0002] When measuring workpieces with complex structures, it is necessary to clamp and position the workpiece. Traditional general-purpose fixtures, such as clamps and clamping plates, often require multiple clamps or clamping plates when the workpiece has an irregular shape. Each additional fixture requires an additional clamping and releasing action, resulting in cumbersome operation and low efficiency. Summary of the Invention

[0003] In view of this, this application provides a clamping and positioning device that can solve the above-mentioned technical problems.

[0004] A clamping and positioning device includes a support assembly, a clamping assembly, and a lifting control assembly. The support assembly has a support surface, and the clamping assembly is located above the support surface and is used to clamp a workpiece. The lifting control assembly is located above the support surface and connected to the clamping assembly. The lifting control assembly includes a guide pin and a lifting control pin. The guide pin passes through the clamping assembly and protrudes from the surface of the clamping assembly near the lifting control assembly. The guide pin has a lifting control groove located at one end of the guide pin exposed in the clamping assembly. The lifting control groove extends through opposite sides of the guide pin, and the lifting control pin passes through the lifting control groove. The lifting control pin is used to control the lifting and lowering of the guide pin to control the clamping assembly to clamp or release the workpiece.

[0005] In some embodiments, the lifting control slot includes a first through slot and a second through slot that are connected to each other. The first through slot is located above the second through slot. The maximum diameter of the first through slot is W1, and the maximum diameter of the second through slot is W2, where W1 > W2. The lifting control pin includes a first segment and a second segment that are connected to each other. The diameter of the first segment is D1, and the diameter of the second segment is D2, where D1 > D2, W1 ≥ D1 > W2, and D2 < W2.

[0006] In some embodiments, the clamping assembly includes a positioning plate, a pressure plate, and a clamping pin. The positioning plate is connected to the support assembly. The pressure plate is located on the side of the positioning plate away from the support assembly and is disposed opposite to the positioning plate. The clamping pin is movably connected to the pressure plate and protrudes from the surface of the pressure plate toward the positioning plate. The guide pin passes through the pressure plate and the positioning plate and is fixedly connected to the pressure plate.

[0007] In some embodiments, the clamping assembly includes at least two clamping pins spaced apart from the pressure plate, the at least two clamping pins being movably connected to the pressure plate and protruding from the surface of the pressure plate toward the positioning plate.

[0008] In some embodiments, the pressure plate includes a first surface and a second surface opposite to each other, and the clamping assembly further includes a cover plate, a first elastic element, and a first baffle. The cover plate is connected to the first surface and has a first through hole. The pressure plate has a second through hole, and the first through hole communicates with the second through hole. The diameter of the first through hole is smaller than the diameter of the second through hole. The clamping pin passes through the first through hole and the second through hole. The first elastic element is sleeved on the clamping pin and is located inside the second through hole. The first baffle is fixed to the outer side wall of the clamping pin, and the first elastic element abuts against the first baffle and the cover plate.

[0009] In some embodiments, the pressure plate is further provided with a first groove that penetrates the second surface, the positioning plate is provided with a second groove that penetrates the surface of the positioning plate away from the lifting control assembly, the first groove and the second groove are disposed opposite to each other, and the clamping assembly further includes a second elastic element located in the first groove and the second groove.

[0010] In some embodiments, the pressure plate is further provided with a third through groove that penetrates the first surface and the second surface, and the positioning plate is further provided with a fourth through groove that penetrates the two opposite surfaces of the positioning plate. The third through groove and the fourth through groove are arranged opposite to each other, and the lifting control pin is inserted through the third through groove and the fourth through groove. The end of the lifting control pin away from the support assembly is fixedly connected to the pressure plate.

[0011] In some embodiments, the lifting control assembly further includes a fixing member connected to the side of the positioning plate away from the pressure plate. The fixing member has a fifth through groove, which is at least partially located on the side of the fourth through groove away from the third through groove. The fifth through groove communicates with the third through groove and the fourth through groove. The lifting control groove is at least partially located inside the fixing member, and the lifting control pin passes through the fixing member and the lifting control groove.

[0012] In some embodiments, the lifting control assembly further includes a supporting member, a third elastic member, and a second baffle. The lifting control pin further includes a third segment connected to the end of the first segment away from the second segment. The diameter of the third segment is D3, where D3 < D2. The third elastic member is located inside the fixing member and sleeved on the third segment. The supporting member has a third groove, and the end of the third segment away from the first segment is inserted into the third groove. The second baffle is fixed at the connection between the second segment and the third segment, and the third elastic member is located between the second baffle and the supporting member.

[0013] In some embodiments, the lifting control assembly further includes a lifting control button connected to the end of the second segment away from the first segment, and the lifting control button is located on the outside of the fixing member.

[0014] The clamping and positioning device provided in this application achieves the switching between clamping and releasing the workpiece through the cooperation of the lifting control groove and the lifting control pin. The operation method is simple and the operation efficiency is high. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the clamping and positioning device provided in one embodiment of this application.

[0016] Figure 2 This is an exploded view of the clamping assembly and lifting control assembly provided in one embodiment of this application.

[0017] Figure 3 This is a partial cross-sectional schematic diagram of a clamping assembly provided in one embodiment of this application.

[0018] Figure 4 This is a partial cross-sectional schematic diagram of the clamping assembly and lifting control assembly provided in one embodiment of this application.

[0019] Figure 5 This is a schematic diagram of the clamping state of the clamping and positioning device provided in one embodiment of this application.

[0020] Figure 6 This is a schematic diagram of the release state of the clamping and positioning device provided in one embodiment of this application.

[0021] Key component symbols: Clamping and positioning device 100, support assembly 10, base 11, support surface 11a, first bracket 12, second bracket 13, clamping assembly 20, positioning plate 21, second groove 21a, fourth through groove 21b, pressure plate 22, second through hole 22a, third through groove 22b, first groove 22c, first surface 221, second surface 222, clamping pin 23, cover plate 24, first through hole 24a, first elastic element 25, first baffle 26, second elastic element 27, lifting control assembly 30, guide pin 31, first side 31a, second side 31b The following components are included: lifting control groove 311, first through groove 311a, second through groove 311b, lifting control pin 32, first section 321, second section 322, third section 323, fixing member 33, fifth through groove 33a, fourth groove 33b, supporting member 34, third groove 34a, third elastic member 35, second baffle 36, lifting control button 37, positioning assembly 40, positioning pin 41, positioning block 42, workpiece 200, first body 210, clamping surface 211, first side wall 212, second body 220, hollow groove 220a, first direction X, second direction Y, third direction Z.

[0022] The following detailed description, in conjunction with the accompanying drawings, further illustrates this application. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the features in the embodiments of this application can be combined with each other.

[0024] The following description sets forth numerous specific details to provide a thorough understanding of the embodiments of this application. The described implementations are only a portion, not all, of the embodiments described herein. All other implementations obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of the embodiments of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of this application belong. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application.

[0026] Please see Figure 1 and Figure 2This application provides a clamping and positioning device 100, including a support assembly 10, a clamping assembly 20, and a lifting control assembly 30. The support assembly 10 has a support surface 11a, and the clamping assembly 20 is located above the support surface 11a and is used to clamp a workpiece 200. The lifting control assembly 30 is located above the support surface 11a and connected to the clamping assembly 20. The lifting control assembly 30 includes a guide pin 31 and a lifting control pin 32. The guide pin 31 passes through the clamping assembly 20 and protrudes from the surface of the clamping assembly 20 near the lifting control assembly 30. The guide pin 31 has a lifting control groove 311, located at one end of the guide pin 31 exposed in the clamping assembly 20, and the lifting control groove 311 extends through opposite sides of the guide pin 31. The lifting control pin 32 passes through the lifting control groove 311 and is used to control the lifting and lowering of the guide pin 31 to control the clamping assembly 20 to clamp or release the workpiece 200. In the clamping and positioning device 100 provided in this application, the state switching of clamping and releasing the workpiece 200 is realized through the cooperation of the lifting control groove 311 and the lifting control pin 32.

[0027] In some embodiments, the lifting control slot 311 includes a first through slot 311a and a second through slot 311b that are connected. The first through slot 311a is located above the second through slot 311b. The maximum diameter of the first through slot 311a is W1, and the maximum diameter of the second through slot 311b is W2, where W1 > W2. The lifting control pin 32 includes a first segment 321 and a second segment 322 that are connected. The diameter of the first segment 321 is D1, and the diameter of the second segment 322 is D2, where D1 > D2, W1 ≥ D1 > W2, and D2 < W2. The long side direction of the support surface 11a is defined as the first direction X, the short side direction of the support surface 11a as the second direction Y, and the height direction of the clamping and positioning device 100 as the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. In this embodiment, the guide pin 31 is placed approximately along the third direction Z, and the lifting control pin 32 is placed approximately along the second direction Y. The guide pin 31 includes a first side surface 31a and a second side surface 31b arranged opposite each other along the second direction Y, and the lifting control groove 311 passes through the first side surface 31a and the second side surface 31b. The maximum diameter W1 of the first through groove 311a is also the maximum width of the first through groove 311a along the first direction X, and the maximum diameter W2 of the second through groove 311b is also the maximum width of the second through groove 311b along the first direction X.

[0028] The lifting control slot 311 provided in this application includes a wide slot (i.e., the first through slot 311a) and a narrow slot (i.e., the second through slot 311b), with the wide slot located above the narrow slot. The lifting control pin 32 includes a large diameter section (i.e., the first section 321) and a small diameter section (i.e., the second section 322).

[0029] In use, pressing the clamping assembly 20 clamps the workpiece 200. Since the guide pin 31 is connected to the clamping assembly 20, it also descends while the clamping assembly 20 is pressed. At this time, the first segment 321 of the lifting control pin 32 enters the first through slot 311a of the lifting control groove 311. When the pressing force on the clamping assembly 20 is released, because the diameter of the first segment 321 is larger than the second through slot 311b, the guide pin 31 cannot rise. Therefore, the clamping assembly 20 can continuously clamp the workpiece 200, facilitating measurement of the workpiece 200. When it is necessary to release the workpiece 200, the first segment 321 exits the first through groove 311a and the second segment 322 enters the first through groove 311a. Since the diameter of the second segment 322 is smaller than that of the second through groove 311b, the second through groove 311b can pass through the second segment 322, so that the guide pin 31 can be lifted. Therefore, the clamping assembly 20 can release the workpiece 200.

[0030] As an example, this application provides a workpiece 200, which includes a first body 210 and a second body 220 connected along a first direction X. The first body 210 is generally U-shaped and includes a clamping surface 211, a first sidewall 212, and a second sidewall, which are connected to the same side of the clamping surface 211. The second body 220 is generally cubic and has a hollow groove 220a extending through one of its surfaces. The clamping assembly 20 clamps and fixes the workpiece 200 mainly by clamping the clamping surface 211. When it is necessary to remove the workpiece 200, the clamping assembly 20 releases the clamping surface 211, and the workpiece 200 can be removed from the clamping and positioning device 100.

[0031] In some embodiments, the clamping assembly 20 includes a positioning plate 21, a pressure plate 22, and a clamping pin 23. The positioning plate 21 is connected to the support assembly 10, and the pressure plate 22 is located on the side of the positioning plate 21 opposite to the support assembly 10 and is disposed opposite to the positioning plate 21. The pressure plate 22 includes a first surface 221 and a second surface 222 disposed opposite to each other in a third direction Z. The clamping pin 23 is movably connected to the pressure plate 22 and protrudes from the second surface 222. A guide pin 31 passes through the pressure plate 22 and the positioning plate 21 and is fixedly connected to the pressure plate 22.

[0032] In use, the clamping surface 211 of the workpiece 200 is placed between the positioning plate 21 and the pressure plate 22. The positioning plate 21 supports the workpiece 200, and the clamping pin 23 abuts against the clamping surface 211 of the workpiece 200. The clamping pin 23 is movably connected to the pressure plate 22, allowing the clamping pin 23 to be adaptively adjusted according to the flatness of the clamping surface 211. This helps reduce the occurrence of situations where the clamping pin 23 cannot contact the clamping surface 211 due to unevenness. Therefore, the compatibility of the clamping assembly 20 with various types of workpieces 200 is improved. Even if the surface of the workpiece 200 is irregular or uneven, the clamping pin 23 can still contact the clamping surface 211 of the workpiece 200. Furthermore, the clamping pin 23, the pressure plate 22, and the positioning plate 21 cooperate with each other to securely clamp the workpiece 200 between the clamping pin 23 and the positioning plate 21.

[0033] In this embodiment, the support assembly 10 includes a base 11, a first bracket 12, and a second bracket 13. The base 11 includes a support surface 11a, and the first bracket 12 and the second bracket 13 are fixed to the support surface 11a. A positioning plate 21 is located on the side of the first bracket 12 opposite to the base 11, and the positioning plate 21 is fixedly connected to the first bracket 12 and the second bracket 13. The first bracket 12 and the second bracket 13 provide support for the positioning plate 21, so as to more stably fix the clamping assembly 20 to the base 11.

[0034] In some embodiments, the clamping assembly 20 includes at least two clamping pins 23, which are spaced apart from each other on the pressure plate 22. The at least two clamping pins 23 are movably connected to the pressure plate 22 and protrude from the second surface 222. Providing at least two clamping pins 23 allows for multi-point contact between the clamping pins 23 and the clamping surface 211 of the workpiece 200, further improving the clamping reliability of the clamping assembly 20 on the workpiece 200.

[0035] In some implementation methods, please refer to the following: Figure 3The clamping assembly 20 also includes a cover plate 24, a first elastic element 25, and a first baffle 26. The cover plate 24 is connected to the first surface 221 and has a first through hole 24a. The pressure plate 22 has a second through hole 22a, and the first through hole 24a and the second through hole 22a communicate with each other. The diameter of the first through hole 24a is smaller than the diameter of the second through hole 22a, and the clamping pin 23 passes through both the first through hole 24a and the second through hole 22a. The first elastic element 25 is sleeved on the clamping pin 23 and is located within the second through hole 22a. The first baffle 26 is fixed to the outer wall of the clamping pin 23, and the first elastic element 25 abuts against the first baffle 26 and the cover plate 24. The diameter relationship between the first through hole 24a and the second through hole 22a, along with the arrangement of the first baffle 26, ensures that the first elastic element 25 abuts against the first baffle 26 and the cover plate 24. The first elastic element 25 is in a compressed state and possesses an elastic restoring force. This elastic restoring force imparts a clamping force to the clamping pin 23, enabling it to abut against the clamping surface 211 of the workpiece 200. Understandably, a suitable elastic element can be selected to provide the required clamping force based on specific circumstances.

[0036] In this embodiment, the clamping assembly 20 is provided with four clamping pins 23, each clamping pin 23 being equipped with a corresponding first elastic element 25 and a first baffle 26. These four clamping pins 23 are spaced apart at the four corners of the pressure plate 22. When the surface of the workpiece 200 is uneven, this helps the clamping pins 23 to uniformly clamp the four points of the workpiece 200, further improving the clamping reliability of the clamping assembly 20. Similar to the clamping surface 211 shown in this application, when the area of ​​the clamping surface 211 of the workpiece 200 is large, to ensure that multiple points of the clamping surface 211 can be clamped and the clamping force is evenly distributed, the traditional method is to use multiple clamps or blocks to clamp different points of the clamping surface 211 separately. However, this method increases the cost of the fixture and reduces the efficiency of manual operation. The clamping assembly 20 provided in this application can adaptively adjust the clamping force according to the workpiece 200, eliminating the need for manual operation or adjustment, thus improving work efficiency. Meanwhile, the clamping pin 23 has a simpler structure and lower cost than the clamping pliers, resulting in higher economic benefits.

[0037] In some implementation methods, please refer to the following: Figure 2 and Figure 4The pressure plate 22 is also provided with a first groove 22c, which penetrates the second surface 222. The positioning plate 21 is provided with a second groove 21a, which penetrates the surface of the positioning plate 21 opposite to the lifting control assembly 30. The first groove 22c and the second groove 21a are arranged opposite to each other. The clamping assembly 20 also includes a second elastic element 27, which is located in the first groove 22c and the second groove 21a. During use, when the pressure plate 22 is pressed, the height of the pressure plate 22 decreases, and the pressure plate 22 drives the height of the guide pin 31 to decrease, and the second elastic element 27 is compressed. When the measurement work is completed and the workpiece 200 needs to be released, the lifting control pin 32 can be controlled to make the first section 321 of the lifting control pin 32 exit from the first through groove 311a of the lifting control groove 311. When the first section 321 is withdrawn, the second through slot 311b of the lifting control slot 311 will pass through the small-diameter second section 322 of the lifting control pin 32, and the pressure plate 22 will be automatically lifted by the restoring force of the second elastic element 27.

[0038] In some embodiments, the pressure plate 22 is further provided with a third through groove 22b, which penetrates the first surface 221 and the second surface 222. The positioning plate 21 is further provided with a fourth through groove 21b, which penetrates the two opposing surfaces of the positioning plate 21. The third through groove 22b and the fourth through groove 21b are arranged opposite to each other and are interconnected. The lifting control pin 32 is inserted through the third through groove 22b and the fourth through groove 21b, and the end of the lifting control pin 32 away from the support assembly 10 is fixedly connected to the pressure plate 22. This arrangement allows one end of the lifting control pin 32 to be located in the third through groove 22b and fixedly connected to the pressure plate 22, while the other end of the lifting control pin 32 can slide up and down in the fourth through groove 21b. When the pressure plate 22 is pressed, the lifting control pin 32 moves downward along the fourth through groove 21b. When the pressure plate 22 is lifted by the restoring force of the second elastic member 27, the lifting control pin 32 moves upward along the fourth through groove 21b, thereby realizing the lifting movement of the guide pin 31.

[0039] In some embodiments, the lifting control assembly 30 further includes a fixing member 33. The fixing member 33 is connected to the side of the positioning plate 21 opposite to the pressure plate 22. The fixing member 33 has a fifth through groove 33a, which is at least partially located on the side of the fourth through groove 21b away from the third through groove 22b. In this embodiment, the fifth through groove 33a is partially located within the fourth through groove 21b and partially located on the side of the fourth through groove 21b away from the third through groove 22b. The fifth through groove 33a communicates with both the third through groove 22b and the fourth through groove 21b. The lifting control groove 311 is at least partially located within the fixing member 33, and the lifting control pin 32 passes through the fixing member 33 and the lifting control groove 311. The fastener 33 helps to support the lifting control pin 32 more stably on the support assembly 10. In addition, the fastener 33 also provides guidance for the lifting movement of the guide pin 31, which helps the guide pin 31 to move stably in the fifth through groove 33a of the fastener 33 and enables the lifting control pin 32 to perform its function more stably.

[0040] In some embodiments, the lifting control assembly 30 further includes a retaining member 34, a third elastic member 35, and a second baffle 36. The lifting control pin 32 also includes a third segment 323, which is connected to the end of the first segment 321 away from the second segment 322, and the diameter of the third segment 323 is D3, where D3 < D2. The third elastic member 35 is located within the fixing member 33 and is sleeved on the third segment 323. The retaining member 34 has a third groove 34a, and the end of the third segment 323 away from the first segment 321 is inserted into the third groove 34a. The second baffle 36 is fixed at the connection between the second segment 322 and the third segment 323, and the third elastic member 35 is located between the second baffle 36 and the retaining member 34. The second baffle 36 cooperates with the retaining member 34 to restrict the position of the third elastic member 35, so that the third elastic member 35 is compressed or stretched between the second baffle 36 and the retaining member 34. When the first segment 321 of the lifting control pin 32 exits the lifting control groove 311, the third elastic element 35 is compressed, the guide pin 31 moves upward, and the large-diameter first segment 321 is restricted by the second through groove 311b of the lifting control groove 311, temporarily unable to enter the lifting control groove 311. When the pressure plate 22 is pressed again, the guide pin 31 moves downward, the height of the first through groove 311a of the lifting control groove 311 decreases, allowing the large-diameter first segment 321 to re-insert into the first through groove 311a of the lifting control groove 311. Therefore, under the restoring force of the third elastic element 35, the first segment 321 re-inserts into the first through groove 311a of the control groove, restricting the lifting of the pressure plate 22, so that the pressure plate 22 continuously clamps the workpiece 200.

[0041] In this embodiment, the fixing member 33 is provided with a fourth groove 33b, which is opposite to and connected to the third groove 34a. The second baffle 36 and the third elastic member 35 are located in the fourth groove 33b. The diameter D3 of the third segment 323 may also be smaller than the width W2 of the second through groove 311b.

[0042] In some embodiments, the lifting control assembly 30 further includes a lifting control button 37, which is connected to the end of the second segment 322 away from the first segment 321 and is located on the outside of the fixing member 33. The lifting control button 37 facilitates control of the movement of the first segment 321 of the lifting control pin 32. In use, simply pressing the lifting control button 37 will cause the first segment 321 of the lifting control pin to retract from the first through slot 311a of the lifting control groove 311. This design simplifies the clamping operation, allowing the clamping assembly 20 to be released with a simple press.

[0043] In some implementations, please refer to Figure 1 The clamping and positioning device 100 also includes a positioning assembly 40. The positioning assembly 40 includes a positioning pin 41 and a positioning block 42. The positioning pin 41 is fixed to the positioning plate 21 and is used to position the workpiece 200 in the first direction X. The positioning block 42 is connected to the side of the positioning plate 21 opposite to the positioning pin 41. The positioning block 42 is approximately U-shaped and is used to abut against the side of the workpiece 200. Please refer to [reference needed]. Figure 1 When the workpiece 200 has a first sidewall 212 or a second sidewall (not shown), the addition of the positioning block 42 helps to position the workpiece 200 in the second direction Y. The positioning assembly 40 increases the accuracy of the workpiece 200's placement on the device, helping the device to better perform its clamping function. Understandably, the positioning block 42 can be designed or adjusted according to the actual shape and size of the workpiece 200.

[0044] The clamping and positioning device 100 provided in this application works roughly as follows: Please refer to... Figure 1 and Figure 5Guided by the positioning component 40, the workpiece 200 is precisely placed on the positioning plate 21. After the workpiece 200 is placed, the pressure plate 22 is pressed down, causing the height of the pressure plate 22 to decrease. The pressure plate 22, clamping pin 23, and positioning plate 21 cooperate to clamp the workpiece 200. At this time, the pressure plate 22 also drives the guide pin 31 to move downward. During the downward movement of the guide pin 31, the first section 321 of the lifting control pin 32 enters the first through groove 311a of the lifting control groove 311, making it impossible for the second through groove 311b to pass through the large-diameter first section 321. Therefore, the large-diameter first section 321 restricts the lifting of the guide pin 31 and the pressure plate 22, allowing the clamping component 20 to continuously clamp the workpiece 200. At this time, the clamping and positioning of the workpiece 200 is completed, and the workpiece 200 can be measured.

[0045] After the measurement of workpiece 200 is completed, please refer to the following: Figure 6 Press the lifting control button 37 to disengage the first section 321 of the lifting control pin 32 from the first through groove 311a. As a result, the second section 322 with a smaller diameter enters the first through groove 311a. Since the diameter of the second section 322 is smaller than the width of the second through groove 311b, the second through groove 311b can pass through the second section 322. The guide pin 31 and the pressure plate 22 are lifted by the restoring force of the second elastic element 27, thereby releasing the workpiece 200.

[0046] For example, Figure 1 The diagram shows the front measurement of workpiece 200. After the front measurement is completed, workpiece 200 can be rotated 180° and placed with the clamping surface 211 still between the pressure plate 22 and the positioning plate 21 to perform reverse clamping and back measurement of workpiece 200, thereby enabling multi-dimensional measurement of workpiece 200. The clamping and positioning device 100 provided in this application can complete the clamping and releasing action by simple pressing, replacing the rotation and pressing action of traditional clamps, which is simple to operate and highly efficient.

[0047] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A clamping and positioning device, characterized in that, include: Support components, having a support surface; A clamping assembly is located above the support surface and is used to clamp the workpiece; as well as A lifting control assembly is located above the support surface and connected to the clamping assembly. The lifting control assembly includes a guide pin and a lifting control pin. The guide pin passes through the clamping assembly and protrudes from the surface of the clamping assembly near the lifting control assembly. The guide pin has a lifting control groove located at one end of the guide pin exposed on the clamping assembly. The lifting control groove extends through opposite sides of the guide pin. The lifting control pin passes through the lifting control groove and is used to control the lifting and lowering of the guide pin to control the clamping assembly to clamp or release the workpiece.

2. The clamping and positioning device as described in claim 1, characterized in that, The lifting control slot includes a first through slot and a second through slot that are connected. The first through slot is located above the second through slot. The maximum diameter of the first through slot is W1, and the maximum diameter of the second through slot is W2, where W1 > W2. The lifting control pin includes a first segment and a second segment that are connected. The diameter of the first segment is D1, and the diameter of the second segment is D2, where D1 > D2, W1 ≥ D1 > W2, and D2 < W2.

3. The clamping and positioning device as described in claim 2, characterized in that, The clamping assembly includes a positioning plate, a pressure plate, and a clamping pin. The positioning plate is connected to the support assembly. The pressure plate is located on the side of the positioning plate away from the support assembly and is disposed opposite to the positioning plate. The clamping pin is movably connected to the pressure plate and protrudes from the surface of the pressure plate facing the positioning plate. The guide pin passes through the pressure plate and the positioning plate and is fixedly connected to the pressure plate.

4. The clamping and positioning device as described in claim 3, characterized in that, The clamping assembly includes at least two clamping pins, which are spaced apart on the pressure plate and are movably connected to the pressure plate and protrude from the surface of the pressure plate toward the positioning plate.

5. The clamping and positioning device as described in claim 3, characterized in that, The pressure plate includes a first surface and a second surface opposite to each other. The clamping assembly further includes a cover plate, a first elastic element, and a first baffle. The cover plate is connected to the first surface and has a first through hole. The pressure plate has a second through hole. The first through hole and the second through hole are connected. The diameter of the first through hole is smaller than the diameter of the second through hole. The clamping pin passes through the first through hole and the second through hole. The first elastic element is sleeved on the clamping pin and is located inside the second through hole. The first baffle is fixed to the outer side wall of the clamping pin and the first elastic element abuts against the first baffle and the cover plate.

6. The clamping and positioning device as described in claim 5, characterized in that, The pressure plate is further provided with a first groove that penetrates the second surface. The positioning plate is provided with a second groove that penetrates the surface of the positioning plate away from the lifting control component. The first groove and the second groove are arranged opposite to each other. The clamping component also includes a second elastic element located in the first groove and the second groove.

7. The clamping and positioning device as described in claim 5, characterized in that, The pressure plate is also provided with a third through groove, which penetrates the first surface and the second surface. The positioning plate is also provided with a fourth through groove, which penetrates the two opposite surfaces of the positioning plate. The third through groove and the fourth through groove are arranged opposite to each other. The lifting control pin is inserted through the third through groove and the fourth through groove, and the end of the lifting control pin away from the support component is fixedly connected to the pressure plate.

8. The clamping and positioning device as described in claim 7, characterized in that, The lifting control assembly further includes a fixing member, which is connected to the side of the positioning plate away from the pressure plate. The fixing member is provided with a fifth through groove, which is at least partially located on the side of the fourth through groove away from the third through groove. The fifth through groove is connected to the third through groove and the fourth through groove. The lifting control groove is at least partially located inside the fixing member, and the lifting control pin passes through the fixing member and the lifting control groove.

9. The clamping and positioning device as described in claim 8, characterized in that, The lifting control assembly further includes a supporting member, a third elastic member, and a second baffle. The lifting control pin further includes a third segment, which is connected to the end of the first segment away from the second segment. The diameter of the third segment is D3, where D3 < D2. The third elastic member is located inside the fixing member and sleeved on the third segment. The supporting member has a third groove, and the end of the third segment away from the first segment is inserted into the third groove. The second baffle is fixed at the connection between the second segment and the third segment, and the third elastic member is located between the second baffle and the supporting member.

10. The clamping and positioning device as described in claim 9, characterized in that, The lifting control assembly also includes a lifting control button, which is connected to the end of the second segment away from the first segment and is located on the outside of the fixing member.

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