A machining center repeat positioning device

Abstract

The application discloses a machining center repeated positioning device, and relates to the technical field of machining centers, which comprises a workbench, a portal frame, a mounting frame one, a material blocking assembly, a clamping assembly, a limiting assembly, a mounting frame two and a pressing assembly. The portal frame is fixedly installed on one side of the top of the workbench. The mounting frame one is vertically fixedly installed on one side of the bottom of the workbench. The material blocking assembly is arranged between the bottom of the workbench and the mounting frame one and used for positioning one side of a part to be machined. The clamping assembly is installed on the inner wall of the top of the portal frame and used for clamping the material blocking assembly to position the part to be machined. The limiting assembly has two groups, and the two groups of limiting assemblies are respectively installed at two ends of the other side of the top of the workbench and used for limiting two ends of the part to be machined. The machining center repeated positioning device has the beneficial effects that accurate positioning of the part to be machined is realized, and the operation is convenient.

Description

Technical Field

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

[0002] As the manufacturing industry continues to advance towards higher precision and efficiency, machining centers, as key equipment in precision machining, directly impact product quality and production efficiency through their positioning accuracy. From the manufacturing of complex components in the aerospace field to the processing of critical engine parts in the automotive industry, and the production of precision molds, machining centers are widely used in various manufacturing processes with stringent precision requirements. In these processes, repeatable positioning devices play an indispensable role in ensuring the precise position of the workpiece in different machining steps, achieving high-precision machining.

[0003] Most existing machining center positioning devices use positioning pins or blocks for positioning, followed by manual clamping and fixing. However, the positioning process of existing machining center positioning devices is cumbersome, requires frequent manual adjustments, and is prone to errors during positioning. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a repeatable positioning device for machining centers. Its advantages include: achieving precise positioning of the parts to be machined and convenient operation.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a machining center repetitive positioning device, comprising: a worktable, and further comprising: a gantry frame, a mounting frame one, a stop assembly, a clamping assembly, a limiting assembly, a mounting frame two, and a pressing assembly; the gantry frame is fixedly installed on one side of the top of the worktable; the mounting frame one is vertically fixedly installed on one side of the bottom of the worktable; the stop assembly is disposed between the bottom of the worktable and the mounting frame one for positioning one side of the workpiece to be processed; the clamping assembly is installed on the inner wall of the top of the gantry frame for clamping the stop assembly to position the workpiece to be processed; there are two sets of limiting assemblies, and the two sets of limiting assemblies are respectively installed at both ends of the other side of the top of the worktable for limiting both ends of the workpiece to be processed; the mounting frame two is vertically fixedly installed on the other side of the bottom of the worktable; the pressing assembly is installed between the other side of both ends of the worktable and the mounting frame two for pressing and positioning the workpiece to be processed.

[0006] Preferably, the material blocking assembly includes: an electric telescopic rod and a material blocking plate. The electric telescopic rod is vertically fixedly installed at the center of the bottom inner wall of the mounting frame. An opening is provided on one side of the top of the workbench. The material blocking plate is vertically fixedly installed on the top of the electric telescopic rod and passes through the opening.

[0007] Preferably, the clamping assembly includes: a mounting slot plate, an insert plate, two mounting plates, four toothed plates, four gears, and eight clamping plates. The mounting slot plate is horizontally fixedly installed on the inner wall of the top of the gantry frame. The insert plate is inserted into the mounting slot plate, and its two sides are slidably disposed against the inner walls of the two sides of the mounting slot plate. The two mounting plates are respectively fixedly installed on both sides of the inner wall of the top of the gantry frame, with the mounting slot plate located between the two mounting plates. The two toothed plates form a group, and the two groups of toothed plates are respectively fixedly installed on the insert plate. On both sides, two of the toothed plates in a set are fixedly installed at both ends of one side of the insert plate. Openings are provided at both ends of the two mounting plates on the side away from each other. Four gears are vertically arranged in the four openings. The four gears are meshed with the corresponding toothed plates. Two clamping plates form a set. Two clamping plates in a set are fixedly installed at both ends of the corresponding gears. The ends of the two clamping plates in a set that are away from each other are rotatably installed on the inner walls of the two ends of the corresponding openings through a rotating shaft.

[0008] Preferably, the clamping assembly includes: a second electric telescopic rod, a first support plate, two second toothed plates, two second gears, and four clamping plates. The second electric telescopic rod is vertically fixedly installed at the center of the bottom inner wall of the second mounting frame. The first support plate is horizontally fixedly installed at the top of the second electric telescopic rod. The two second toothed plates are vertically fixedly installed at both ends of the top of the first support plate. Openings are provided at both ends of the other side of the top of the workbench. The two second gears are vertically arranged in the corresponding openings. The two second gears are meshed with the corresponding second toothed plates. The two clamping plates form a group. The two clamping plates in the group are fixedly installed on both sides of the corresponding second gear. The two clamping plates in the group that are far apart from each other are rotatably installed on the inner walls of the corresponding openings via rotating shafts.

[0009] Preferably, the limiting component includes: a sleeve, an insert block, and a buffer spring. The two sleeves are respectively fixedly installed at both ends on the other side of the top of the workbench. The two insert blocks are inserted into the two corresponding sleeves. The side of the two insert blocks that are close to each other and away from the gantry frame is set as a curved surface. The buffer spring is respectively fixedly installed between the insert block and the end of the sleeve that is close to the insert block.

[0010] Preferably, the pressing plate is arc-shaped, with its concave portion facing the worktable, and the clamping plate is arc-shaped, with its concave portion facing the insert plate.

[0011] Preferably, a support plate two is rotatably mounted on the top inner wall of one side of the opening one via a torsion spring shaft.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) This invention proposes a repeatable positioning device for a machining center. It is equipped with a worktable, a gantry frame, a mounting frame 1, an electric telescopic rod 1, a baffle plate, a mounting groove plate, an insert plate, a mounting plate, a toothed plate 1, a gear 1, a clamping plate, a limiting component, a mounting frame 2, and a pressing component. The electric telescopic rod 1 drives the baffle plate to move upward and pushes the insert plate to slide in the mounting groove plate. The toothed plate 1 moves and drives the gear 1 to rotate, which drives the clamping plate to rotate around the rotating shaft and approach the baffle plate to clamp it. In this way, the baffle plate positions one side of the workpiece to be processed, preventing it from shifting left or right during processing. This achieves precise positioning of the workpiece to be processed and is easy to operate.

[0014] (2) The present invention proposes a repeatable positioning device for machining center, which is provided with an electric telescopic rod 2, a support plate 1, a toothed plate 2, a gear 2 and a clamping plate. The electric telescopic rod 2 extends and drives the support plate 1 to rise, which in turn drives the toothed plate 2 to rise and drive the gear 2 to rotate, which drives the clamping plate to rotate around the rotating shaft and clamp the workpiece to be processed, stabilizes the workpiece, reduces processing vibration and displacement, and achieves accurate positioning of the workpiece to be processed. The operation is convenient. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view of the front of the invention.

[0017] Figure 3 This is a perspective view of the side of the present invention.

[0018] Figure 4 This is a perspective view highlighting the clamping component in this invention.

[0019] Figure 5 This is a perspective view highlighting the clamping assembly in this invention.

[0020] Figure 6 This is a cross-sectional view of the limiting component in this invention.

[0021] Figure 7 This is a perspective view highlighting the mounting groove plate in this invention.

[0022] In the diagram: 1. Workbench; 201. Electric telescopic rod one; 202. Material stop plate; 301. Mounting slot plate; 302. Insert plate; 303. Mounting plate; 304. Tooth plate one; 305. Gear one; 306. Clamping plate; 401. Electric telescopic rod two; 402. Support plate one; 403. Tooth plate two; 404. Gear two; 405. Pressure plate; 501. Sleeve; 502. Insert block; 503. Buffer spring; 7. Gantry frame; 8. Mounting bracket one; 9. Mounting bracket two; 10. Support plate two. Detailed Implementation

[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] One preferred embodiment of this application, such as Figures 1 to 7 As shown, a machining center repetitive positioning device includes: a worktable 1, and further includes: a gantry frame 7, a mounting bracket 8, a stop assembly, a clamping assembly, a limiting assembly, a second mounting bracket 9, and a pressing assembly; the gantry frame 7 is fixedly installed on one side of the top of the worktable 1; the mounting bracket 8 is vertically fixedly installed on one side of the bottom of the worktable 1; the stop assembly is disposed between the bottom of the worktable 1 and the mounting bracket 8 for positioning one side of the workpiece to be processed; the clamping assembly is installed on the inner wall of the top of the gantry frame 7 for clamping the stop assembly to position the workpiece to be processed; there are two sets of limiting assemblies, which are respectively installed at both ends of the other side of the top of the worktable 1 for limiting both ends of the workpiece to be processed; the second mounting bracket 9 is vertically fixedly installed on the other side of the bottom of the worktable 1; the pressing assembly is installed between the other ends of the worktable 1 and the second mounting bracket 9 for pressing and positioning the workpiece to be processed.

[0027] When using the repetitive positioning device of the machining center, first activate the stop assembly. The stop assembly works in conjunction with the clamping assembly to prevent the stop assembly from shifting left or right during machining. Then, move the part to be machined onto the worktable 1, gradually bringing one side of the part closer to the stop assembly. After one side of the part is in close contact with the stop assembly, position one side of the part to be machined to ensure that the part is completely fixed in the horizontal direction. While the part to be machined is moving, it is limited at both ends by two sets of limiting assemblies. Then, activate the clamping assembly to clamp and position the part to be machined, further stabilizing the part and reducing vibration and displacement during machining. After machining is completed, sequentially close the clamping assembly, limiting assembly, clamping assembly, and stop assembly. The part moves on the worktable 1, passing directly under the gantry 7. Then, the machined part is removed from the worktable 1 or moved directly to the next position to prepare for the next machining. This achieves precise positioning of the part to be machined and is easy to operate.

[0028] Further reference Figures 2-3 The material blocking assembly includes: an electric telescopic rod 201 and a material blocking plate 202. The electric telescopic rod 201 is vertically fixedly installed at the center of the bottom inner wall of the mounting frame 8. An opening is provided on one side of the top of the workbench 1. The material blocking plate 202 is vertically fixedly installed on the top of the electric telescopic rod 201 and passes through the opening.

[0029] Start the electric telescopic rod 201 to extend it, which will drive the baffle plate 202 to move upward. Then, move the part to be processed onto the worktable 1. One side of the part gradually approaches the baffle plate 202. After one side of the part is in close contact with the baffle plate 202, position one side of the part to be processed. After processing is completed, the baffle plate 202 is retracted, and the part moves on the worktable 1 and passes directly under the gantry 7.

[0030] Further reference Figures 1-3 , Figure 5 and Figure 7The clamping assembly includes: a mounting slot plate 301, an insert plate 302, two mounting plates 303, four toothed plates 304, four gears 305, and eight clamping plates 306. The mounting slot plate 301 is horizontally fixedly installed on the inner wall of the top of the gantry frame 7. The insert plate 302 is inserted into the mounting slot plate 301, and the two sides of the insert plate 302 are slidably disposed against the inner walls of the two sides of the mounting slot plate 301. The two mounting plates 303 are fixedly installed on the two sides of the inner wall of the top of the gantry frame 7, and the mounting slot plate 301 is located between the two mounting plates 303. The two toothed plates 304 form a group, and the two groups of toothed plates 304 are fixedly fixed. Installed on both sides of the insert plate 302, two toothed plates 304 in a set are fixedly installed at both ends of one side of the insert plate 302. Openings 2 are opened at both ends of the side of the two mounting plates 303 that are far apart from each other. Four gears 305 are vertically set in the four openings 2 respectively. The four gears 305 are respectively meshed with the corresponding toothed plates 304. Two clamping plates 306 form a set. Two clamping plates 306 in a set are fixedly installed at both ends of the corresponding gears 305. The ends of the two clamping plates 306 in a set that are far apart from each other are rotatably installed with the inner walls of the two ends of the corresponding openings 2 through a rotating shaft.

[0031] Activating the electric telescopic rod 201 moves the baffle plate 202 upward. The baffle plate 202 pushes the insert plate 302 to slide upward within the mounting slot 301. The movement of the insert plate 302 causes the toothed plate 304 to move synchronously. The toothed plate 304 then drives the gear 305 to rotate. The gear 305 drives the clamping plate 306 to rotate around the shaft, causing the clamping plate 306 to rotate towards the baffle plate 202 until the baffle plate 202 is clamped. The baffle plate 202 positions one side of the workpiece to be processed, preventing the baffle plate 202 from shifting left or right during processing, thus achieving precise positioning of the workpiece.

[0032] Further reference Figures 1-4 and Figure 7 The clamping assembly includes: an electric telescopic rod 401, a support plate 402, two toothed plates 403, two gears 404, and four clamping plates 405. The electric telescopic rod 401 is vertically fixed to the center of the bottom inner wall of the mounting frame 9. The support plate 402 is horizontally fixed to the top of the electric telescopic rod 401. The two toothed plates 403 are vertically fixed to the top two ends of the support plate 402. Openings 3 are provided at both ends of the other side of the top of the workbench 1. The two gears 404 are vertically set in the corresponding openings 3. The two gears 404 are meshed with the corresponding toothed plates 403. The two clamping plates 405 form a group. The two clamping plates 405 in the group are fixed to the two sides of the corresponding gears 404. The two clamping plates 405 in the group are rotatably installed on the two sides of the inner wall of the corresponding openings 3 through a rotating shaft.

[0033] Activate the electric telescopic rod 401 to extend it, which in turn raises the support plate 402. The support plate 402 then raises the gear plate 403 simultaneously. The gear plate 403 meshes with the gear 404, driving the gear 404 to rotate. The rotation of the gear 404 causes the clamping plate 405 to rotate around the shaft, causing the clamping plate 405 to rotate toward the part to be processed until the part is clamped and positioned, further stabilizing the part and reducing vibration and displacement during processing. This achieves precise positioning of the part to be processed and is easy to operate.

[0034] Further reference Figures 1-2 , Figure 4 and Figure 6 The limiting assembly includes: sleeve 501, insert block 502 and buffer spring 503. The two sleeves 501 are fixedly installed at both ends of the other side of the top of the workbench 1. The two insert blocks 502 are inserted into the two corresponding sleeves 501. The side of the two insert blocks 502 that are close to each other and away from the gantry frame 7 are both set as curved surfaces. The buffer spring 503 is fixedly installed between the insert block 502 and the sleeve 501 that is close to the insert block 502.

[0035] When the part to be processed is moved onto the worktable 1, and one side of the part gradually approaches the baffle plate 202, the part is pushed so that both ends of the part contact the curved surface of the insert block 502. As the part is pushed, the insert block 502 retracts into the sleeve 501, compressing the buffer spring 503. When the part reaches the appropriate position, the elastic force of the buffer spring 503 makes the insert block 502 press tightly against both ends of the part, limiting the two ends of the part to be processed, ensuring that the part is completely fixed in the horizontal direction, and avoiding left and right deviation during processing.

[0036] Further reference Figures 1-5 The clamping plate 405 is arc-shaped, with its concave part facing the worktable 1. The clamping plate 306 is arc-shaped, with its concave part facing the insert plate 302.

[0037] When the clamping plate 405 rotates, it gradually clamps the parts on the worktable 1 to ensure that the parts remain stable during processing and will not move due to external forces. When the clamping plate 306 rotates, the clamping insert 302 is set up using the arc shape of the clamping plate 306.

[0038] Further reference Figure 1 , Figure 3 and Figure 4 A support plate 10 is mounted on the top inner wall of one side of the opening via a torsion spring shaft.

[0039] Start the electric telescopic rod 201, which drives the baffle plate 202 to rise. During the rising process, the baffle plate 202 will push up the support plate 10, causing it to rotate around the torsion spring shaft and open, providing space for the baffle plate 202 to rise through the opening. After processing is completed, control the electric telescopic rod 201 to retract, and the baffle plate 202 will descend. At this time, the support plate 10 will automatically reset under the action of the torsion spring shaft, covering the opening to prevent debris from falling into the opening and will not affect the movement of the parts on the worktable 1.

[0040] Working principle: When using the machining center's repeatable positioning device, firstly, the electric telescopic rod 201 is activated, extending it and causing the baffle plate 202 to move upward. During the upward movement, the baffle plate 202 pushes up the support plate 10, causing it to rotate around the torsion spring shaft and open, providing space for the baffle plate 202 to rise through the opening. The baffle plate 202 pushes the insert plate 302 to slide upward within the mounting slot 301. The movement of the insert plate 302 causes the gear plate 304 to move synchronously. The gear plate 304 then drives the gear 305 to rotate. 305 drives the clamping plate 306 to rotate around the pivot, causing the clamping plate 306 to rotate towards the stop plate 202 until the stop plate 202 is clamped. Then, the workpiece to be processed is moved onto the worktable 1, and one side of the workpiece gradually approaches the stop plate 202. After one side of the workpiece is in close contact with the stop plate 202, one side of the workpiece to be processed is positioned to prevent the stop plate 202 from shifting left or right during processing. Then, the electric telescopic rod 401 is activated to extend it, driving the support plate 402 to rise. The support plate 402 drives the toothed plate 403 to move in the same direction. As the machine moves upward, the second gear plate 403 meshes with the second gear 404, driving the second gear 404 to rotate. The rotation of the second gear 404 causes the clamping plate 405 to rotate around the axis, causing the clamping plate 405 to rotate towards the workpiece until the workpiece is clamped and positioned, further stabilizing the workpiece and reducing vibration and displacement during processing. When the workpiece is moved onto the worktable 1 and one side of the workpiece gradually approaches the stop plate 202, the workpiece is pushed so that both ends contact the curved surface of the insert block 502. As the workpiece is pushed, the insert block 502 retracts into the sleeve 501, compressing... The buffer spring 503, once the part reaches the appropriate position, causes the insert block 502 to press tightly against both ends of the part, limiting the two ends of the part to be processed and ensuring that the part is completely fixed in the horizontal direction. After processing, the baffle plate 202 retracts, and the part moves on the worktable 1, passing directly under the gantry 7. Then the processed part is removed from the worktable 1 or moved directly to the next position to prepare for the next processing. This achieves precise positioning of the part to be processed and is easy to operate.

[0041] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A repeatable positioning device for a machining center, comprising: The workbench (1) is characterized by further comprising: Gantry frame (7): The gantry frame (7) is fixedly installed on one side of the top of the workbench (1); Mounting bracket one (8): The mounting bracket one (8) is vertically fixedly installed on one side of the bottom of the workbench (1); Material stop assembly: The material stop assembly is disposed between the bottom of the worktable (1) and the mounting bracket (8) for positioning one side of the part to be processed; Clamping assembly: The clamping assembly is installed on the top inner wall of the gantry (7) to clamp the stop assembly and position the workpiece to be processed; Limiting components: There are two sets of limiting components, and the two sets of limiting components are respectively installed at both ends of the other side of the top of the worktable (1) to limit the two ends of the workpiece to be processed; Mounting bracket two (9): The mounting bracket two (9) is vertically fixedly installed on the other side of the bottom of the workbench (1); Clamping assembly: The clamping assembly is installed between the other side of both ends of the worktable (1) and the mounting bracket (9) for clamping and positioning the workpiece to be processed; The clamping assembly includes: a mounting slot plate (301), an insert plate (302), two mounting plates (303), four toothed plates (304), four gears (305), and eight clamping plates (306). The mounting slot plate (301) is horizontally fixedly installed on the inner wall of the top of the gantry frame (7). The insert plate (302) is inserted into the mounting slot plate (301). The two sides of the insert plate (302) are slidably disposed with respect to the inner walls of the two sides of the mounting slot plate (301). The two mounting plates (303) are fixedly installed on the two sides of the inner wall of the top of the gantry frame (7). The mounting slot plate (301) is located between the two mounting plates (303). The two toothed plates (304) form a group, and the two groups of toothed plates (305) form a clamping plate. 4) The two gear plates (304) in a set are fixedly installed on both sides of the insert plate (302). The two gear plates (304) in a set are fixedly installed on both ends of one side of the insert plate (302). The two mounting plates (303) on the opposite sides of each other are provided with openings. The four gears (305) are vertically installed in the four openings. The four gears (305) are meshed with the corresponding gear plates (304). The two clamping plates (306) are a set. The two clamping plates (306) in a set are fixedly installed on both ends of the corresponding gears (305). The opposite ends of the two clamping plates (306) in a set are rotatably installed on the inner walls of the two ends of the corresponding openings through a rotating shaft.

2. The machining center repeatable positioning device as described in claim 1, characterized in that, The material blocking assembly includes: an electric telescopic rod (201) and a material blocking plate (202). The electric telescopic rod (201) is vertically fixedly installed at the center of the bottom inner wall of the mounting frame (8). An opening is provided on one side of the top of the workbench (1). The material blocking plate (202) is vertically fixedly installed on the top of the electric telescopic rod (201). The material blocking plate (202) passes through the opening.

3. The machining center repeatable positioning device as described in claim 1, characterized in that, The clamping assembly includes: a second electric telescopic rod (401), a first support plate (402), two second toothed plates (403), two second gears (404), and four clamping plates (405). The second electric telescopic rod (401) is vertically fixedly installed at the center of the bottom inner wall of the second mounting frame (9). The first support plate (402) is horizontally fixedly installed at the top of the second electric telescopic rod (401). The two second toothed plates (403) are vertically fixedly installed at both ends of the top of the first support plate (402). The worktable (1) An opening three is provided at both ends of the other side of the top. The two gears (404) are vertically arranged in the corresponding opening three. The two gears (404) are meshed with the corresponding toothed plate (403). The two clamping plates (405) are a group. The two clamping plates (405) in the group are fixedly installed on both sides of the corresponding gears (404). The two clamping plates (405) in the group are rotatably installed on the inner walls of the two sides of the corresponding opening three through a rotating shaft.

4. The machining center repeatable positioning device as described in claim 3, characterized in that, The limiting component includes: a sleeve (501), a plug (502), and a buffer spring (503). The two sleeves (501) are respectively fixedly installed at both ends on the other side of the top of the workbench (1). The two plugs (502) are inserted into the two corresponding sleeves (501). The side of the two plugs (502) that are close to each other and away from the gantry frame (7) is set as a curved surface. The buffer spring (503) is respectively fixedly installed between the plug (502) and the sleeve (501) at the end close to the plug (502).

5. The machining center repeatable positioning device as described in claim 3, characterized in that, The clamping plate (405) is arc-shaped, with its concave portion facing the worktable (1). The clamping plate (306) is arc-shaped, with its concave portion facing the insert plate (302).

6. The machining center repeatable positioning device as described in claim 2, characterized in that, A support plate 2 (10) is rotatably mounted on the top inner wall of one side of the opening via a torsion spring shaft.

Images