Positioning and clamping device for precision machining of granite

By designing a positioning clamping device that can change the clamping position, and by using the cooperation of the swing plate and the central shaft, combined with the hydraulic cylinder and the rotary motor drive, the problem of uneven force on both sides of the granite slab is solved, and the uniform clamping and fine processing of the slab is achieved.

CN224028034UActive Publication Date: 2026-03-24JINGMEN SHUNCHENG STONE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing precision granite machining positioning and clamping devices have fixed clamping positions, resulting in uneven force on both sides of the stone slab, which easily leads to damage.

Method used

A positioning clamping device with adjustable clamping position was designed. The position of the clamping plate can be adjusted by the cooperation of the swing plate and the central shaft. The clamping position can be flexibly adjusted by the combination of hydraulic cylinder, rotary motor and gear rack.

Benefits of technology

This avoids damage to the sides of the stone slab when subjected to stress, and improves the finishing quality and efficiency of the granite slab.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of granite machining, in particular to a positioning and clamping device for precision machining of granite, which is characterized in that a movable plate can move and change the position of a clamping plate through the matching between a swing plate and a central shaft when the swing plate swings and drags the central shaft, so that the clamping plate can be clamped by the movable plate; and when the positions of the clamping plates are changed, the clamping position of the stone plate can be changed, so that the device can conveniently adjust the clamping position, and the situation that when the two sides of the stone plate are stressed, the stone plate is prone to being damaged is avoided. According to the positioning and clamping device for granite precision machining, through cooperation between a swing plate and a center shaft, when the swing plate swings and drags the center shaft, a movable plate can move and change the position of a clamping plate, and when the position of the clamping plate is changed, the clamping position of a stone plate can be changed, so that the device can conveniently adjust the clamping position; and the situation that the two sides of the stone plate are easily damaged when stressed is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of granite processing technology, concretely is a positioning clamping device of granite precision machining. BACKGROUND

[0002] It is known that granite belongs to intrusive rock in acid magmatic rock, and it is the most common rock in this kind, and is mostly light red, light gray, gray white and the like, and the granite stone is often used as ground wall paving material in engineering, and during processing, a cutting machine is generally used to process large stone into stone plate meeting the size requirement, and then further precision machining is carried out.

[0003] The positioning clamping device for granite precision machining is provided with a clamping structure, and the position of the clamping structure is mostly in the middle, so that the stone plate is fixed by clamping the middle part of the stone plate, and the force on both sides of the stone plate is uneven, so that the force generated by the processing equipment easily damages the both sides of the stone plate during processing of the both sides of the stone plate, and the precision machining work of the granite stone plate is affected. UTILITY MODEL CONTENT

[0004] TECHNICAL PROBLEM

[0005] In order to overcome the problem of fixed clamping position of the positioning clamping device for granite precision machining, the utility model provides a positioning clamping device for granite precision machining with a changeable clamping position effect.

[0006] TECHNICAL SCHEME

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a positioning clamping device for granite precision machining, which comprises a machine body, an activity groove is formed in the inside of the machine body, two groups of positioning blocks are arranged on one side of the machine body and are arranged in parallel, a swing assembly is arranged in the activity groove, the swing assembly comprises two groups of movable plates which are slidably arranged in the activity groove and two groups of fixed shafts which are arranged in parallel in the activity groove, a recess is formed in the inside of the movable plate, a center shaft is arranged on the inner wall of the recess, a swing plate is rotatably arranged on the outside of the fixed shaft, the swing plate is slidably arranged on the outside of the center shaft on one side, a half gear is arranged on the side of the swing plate away from the center shaft, the half gear is engaged with a driving assembly, the driving assembly is arranged in the activity groove, and a clamping assembly is slidably arranged on the outside of the machine body and is fixedly arranged with the movable plate.

[0008] Preferably, the inner wall of the activity groove is provided with two groups of limiting rods arranged in parallel, and the movable plate is slidably arranged on the outside of the two groups of limiting rods.

[0009] Further, two groups of blocking plates are arranged on the outside of the limiting rods, the blocking plates are rubber blocking plates, and the blocking plates are located between the two groups of movable plates.

[0010] Further, the spring is fixedly arranged at the inner wall of the movable slot and away from the movable plate.

[0011] Further, the clamping assembly is arranged in four groups, the clamping assembly comprises a supporting plate fixedly arranged at one side of the movable plate, the supporting plate is provided with sliding blocks at two sides, one side of two groups of sliding blocks is fixedly arranged with a mounting plate, the mounting plate is provided with a hydraulic cylinder at one side close to the sliding block, the output end of the hydraulic cylinder penetrates the mounting plate and is connected with the clamping plate through a key.

[0012] Based on the foregoing scheme, the clamping plate is provided with two groups of buffer pads at one side close to the mounting plate, and the buffer pads are rubber buffer pads.

[0013] Based on the foregoing scheme, further, the driving assembly comprises a rotary motor arranged at the inner wall of the movable slot, the output end of the rotary motor is connected with a threaded pipe through a key, the outer side of the threaded pipe is screwed with a sleeve, the outer side of the sleeve is provided with two groups of cross plates, the cross plates are provided with connecting plates at one side away from the sleeve, the connecting plates are provided with a rack at one side away from the cross plates, and the rack is engaged with the half gear.

[0014] Based on the foregoing scheme, further, the sleeve is provided with a threaded hole in the inside, and the threads on the inner wall of the threaded hole are matched with the threads on the outer side of the threaded pipe.

[0015] Beneficial effects

[0016] The granite precision machining positioning and clamping device can conveniently adjust the clamping position and avoid damage to the stone plate when the two sides of the stone plate are stressed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a side view structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the clamping assembly of the utility model;

[0019] Figure 3 It is a structural exploded view of the clamping assembly of the utility model;

[0020] Figure 4 It is a partial sectional view of the utility model machine body;

[0021] Figure 5 It is a structural sectional view of the utility model machine body;

[0022] Figure 6 It is a structure schematic view of the swing assembly of the utility model;

[0023] Figure 7 It is a structure schematic view of the swing assembly of the utility model;

[0024] Figure 8 It is a structure schematic view of the drive assembly of the utility model.

[0025] In the figure: 1, machine body; 2, positioning block; 3, clamping assembly; 301, mounting plate; 302, buffer pad; 303, clamping plate; 304, support plate; 305, sliding block; 306, hydraulic cylinder; 4, swing assembly; 401, movable plate; 402, spring; 403, limiting rod; 404, blocking plate; 405, groove; 406, center shaft; 407, sliding groove; 408, swing plate; 409, fixed shaft; 410, half gear; 411, anti-dropping block; 5, drive assembly; 501, rotary motor; 502, threaded tube; 503, sleeve; 504, cross plate; 505, rack; 506, connecting plate; 6, movable slot. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Referring to Figures 1 to 5 A positioning and clamping device for precise processing of granite, comprising a machine body 1, a movable slot 6 formed in the machine body 1, two side positioning blocks 2 arranged on one side of the machine body 1, a swing assembly 4 arranged in the movable slot 6, a drive assembly 5 arranged in the movable slot 6, and a clamping assembly 3.

[0028] When the stone plate is placed on the machine body 1, the two sides of the stone plate will be stopped by the positioning blocks 2, and at the same time, the stone plate will be clamped and fixed by the four clamping plates 303, and thus be clamped and positioned in the middle of the machine body 1.

[0029] First, referring to Figures 1 to 3 In this embodiment, the number of clamping assemblies 3 is four, and each clamping assembly 3 comprises a support plate 304 fixedly arranged on one side of the movable plate 401, two sliding blocks 305 welded on the two sides of the support plate 304, and two groups of sliding blocks 305 are bolted on one side of the mounting plate 301, the mounting plate 301 is provided with a hydraulic cylinder 306 on the side close to the sliding block 305, and the output end of the hydraulic cylinder 306 penetrates through the mounting plate 301 and is connected with the clamping plate 303 by a key.

[0030] Specifically, in order to avoid the clamping plate 303 from colliding with the mounting plate 301, two sets of buffer pads 302 are arranged on the side of the clamping plate 303 close to the mounting plate 301, and the buffer pad 302 is a rubber buffer pad, so that the clamping plate 303 and the mounting plate 301 are blocked by the buffer pad 302.

[0031] After the hydraulic cylinder 306 is opened, the output end will drive the clamping plate 303 to displace, and the four sets of clamping plates 303 will cooperate with each other to clamp the stone plate after moving, and will drive the mounting plate 301 to displace by driving the two sets of sliding blocks 305 when the supporting plate 304 is displaced, and the clamping plate 303 will be driven to displace by driving the hydraulic cylinder 306 when the mounting plate 301 is displaced, so as to change the clamping position of the clamping plate 303.

[0032] Then, referring to Figures 4 to 7 In this embodiment, the swing assembly 4 includes two sets of movable plates 401 slidingly arranged in the movable groove 6 and two sets of fixed shafts 409 arranged in parallel in the movable groove 6. The movable plate 401 has a recess 405 formed in the interior thereof, and a center shaft 406 is welded to the inner wall of the recess 405. The outer side of the fixed shaft 409 is rotatably provided with a swing plate 408, and the swing plate 408 is arranged obliquely. The swing directions of the two sets of swing plates 408 are opposite. One side of the swing plate 408 is slidingly arranged on the outer side of the center shaft 406. The swing plate 408 has a sliding groove 407 formed in the interior thereof, and the center shaft 406 is located in the sliding groove 407. A half gear 410 is arranged on the side of the swing plate 408 away from the center shaft 406, and the half gear 410 is engaged with the driving assembly 5.

[0033] Specifically, in order to maintain the balance of the movable plate 401 during movement, two sets of limiting rods 403 arranged in parallel are arranged on the inner wall of the movable groove 6, and the movable plate 401 is slidingly arranged on the outer side of the two sets of limiting rods 403. On the one hand, the limiting rod 403 maintains the balance of the movable plate 401 during movement, prevents the movable plate 401 from shaking due to imbalance during movement, and ensures the normal displacement of the movable plate 401. On the other hand, the limiting rod 403 limits the movement direction of the movable plate 401, preventing the device from failing due to misalignment of the movable plate 401.

[0034] At the same time, in order to avoid the two sets of movable plates 401 from colliding with each other, two sets of blocking plates 404 are arranged on the outer side of the limiting rod 403, and the blocking plate 404 is a rubber blocking plate. The blocking plate 404 is located between the two sets of movable plates 401, so that the two sets of movable plates 401 are blocked by the blocking plate 404, avoiding the collision between the two sets of movable plates 401.

[0035] Specific, in order to make the movable plate 401 can quickly back, in the movable plate 401 away from the blocking plate 404 side is provided with a spring 402, the spring 402 away from the movable plate 401 one end is fixedly arranged in the inner wall of the movable slot 6, thus when the movable plate 401 is pushed to displace, the spring 402 will be pressed by the movable plate 401, and when the movable plate 401 is no longer pushed, the spring 402 will be through the elastic movable plate 401 back to drive the clamp plate 303 back, so that the clamp plate 303 quickly back to the initial position.

[0036] Secondly, referring to Figures 5 to 7 In this embodiment, in order to avoid the swing plate 408 from the fixed shaft 409, the outer side of the fixed shaft 409 is screwed with two groups of anti-off blocks 411, and the two groups of anti-off blocks 411 are located on both sides of the swing plate 408, thus the swing plate 408 can be limited by the anti-off block 411, avoiding the swing plate 408 from the fixed shaft 409.

[0037] When the half gear 410 is pushed, the half gear 410 will drive the swing plate 408 to swing around the fixed shaft 409, so that one side of the swing plate 408 pulls the center shaft 406 to displace, and the movement of the center shaft 406 will drive the movable plate 401 to displace, so that the movable plate 401 drives the support plate 304 to displace.

[0038] Finally, referring to Figure 5 And Figure 7 In this embodiment, the driving assembly 5 includes a rotary motor 501 arranged in the inner wall of the movable slot 6, the rotary motor 501 is a bidirectional motor, the output end of which can rotate forward or reverse, the output end of the rotary motor 501 is key connected with a threaded tube 502, the outer side of the threaded tube 502 is screwed with a sleeve 503, the inside of the sleeve 503 is provided with a threaded hole, the threads on the inner wall of the threaded hole and the threads on the outer side of the threaded tube 502 are matched, the operator can control the moving direction of the sleeve 503 by controlling the rotating direction of the output end of the rotary motor 501, the outer side of the sleeve 503 is welded with two groups of cross plates 504, the cross plates 504 are slidingly connected in the grooves 405, the side away from the sleeve 503 of the cross plates 504 is welded with a connecting plate 506, the side away from the cross plates 504 of the connecting plate 506 is provided with a rack 505, and the rack 505 is engaged with the half gear 410.

[0039] After the rotary motor 501 is turned on, the output end of the rotary motor 501 will drive the threaded tube 502 to rotate, the rotation of the threaded tube 502 will drive the sleeve 503 to displace linearly, the movement of the sleeve 503 will drive the connecting plate 506 and the rack 505 to displace through the cross plates 504, so that the rack 505 pushes the half gear 410 to rotate in the movement.

[0040] The positioning and clamping device for granite precision machining is capable of conveniently adjusting the clamping position and avoiding the damage of the stone plate when the two sides of the stone plate are stressed, through the cooperation between the swing plate 408 and the central shaft 406, and the movement and position change of the movable plate 401 when the swing plate 408 swings and pulls the central shaft 406, and the change of the clamping position of the clamping plate 303 when the clamping plate 303 changes position.

[0041] Working principle:

[0042] The positioning and clamping device for granite precision machining is capable of conveniently adjusting the clamping position and avoiding the damage of the stone plate when the two sides of the stone plate are stressed, through the cooperation between the swing plate 408 and the central shaft 406, and the movement and position change of the movable plate 401 when the swing plate 408 swings and pulls the central shaft 406, and the change of the clamping position of the clamping plate 303 when the clamping plate 303 changes position.

[0043] And when the clamping position needs to be changed, the position of the clamping plate 303 is adjusted, and the specific operation is that: the rotary motor 501 is turned on to drive the threaded pipe 502 to rotate, the rotation of the threaded pipe 502 drives the sleeve pipe 503 to move linearly, the movement of the sleeve pipe 503 drives the connecting plate 506 and the rack 505 to move through the horizontal plate 504, so that the rack 505 moves and drives the half gear 410 to rotate, when the half gear 410 is driven, the half gear 410 drives the swing plate 408 to swing around the fixed shaft 409, so that one side of the swing plate 408 pulls the central shaft 406 to move, and the movement of the central shaft 406 drives the movable plate 401 to move, so that the movable plate 401 drives the support plate 304 to move, when the support plate 304 moves, it drives the mounting plate 301 to move by driving the two groups of sliding blocks 305, and when the mounting plate 301 moves, it drives the clamping plate 303 to move by driving the hydraulic cylinder 306, so as to change the clamping position of the clamping plate 303.

[0044] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A positioning and clamping device for precision machining of granite, characterized in that, include: The body (1) has a movable slot (6) inside; Two sets of positioning blocks (2) are set on one side of the body (1) and arranged in parallel; A swing assembly (4) is provided in the movable groove (6). The swing assembly (4) includes two sets of movable plates (401) slidably disposed in the movable groove (6) and two sets of fixed shafts (409) parallel to the movable groove (6). The movable plate (401) has a groove (405) inside. A central shaft (406) is provided on the inner wall of the groove (405). A swing plate (408) is rotatably disposed on the outer side of the fixed shaft (409). One side of the swing plate (408) is slidably disposed on the outer side of the central shaft (406). A half gear (410) is provided on the side of the swing plate (408) away from the central shaft (406). The half gear (410) meshes with the drive assembly (5). The drive assembly (5) is installed in the active slot (6); and A clamping assembly (3) is slidably disposed on the outside of the body (1) and fixedly disposed with the movable plate (401).

2. The positioning and clamping device for precision machining of granite according to claim 1, characterized in that, The inner wall of the movable groove (6) is provided with two sets of parallel limiting rods (403), and the movable plate (401) is slidably disposed on the outside of the two sets of limiting rods (403).

3. The positioning and clamping device for precision machining of granite according to claim 2, characterized in that, Two sets of blocking plates (404) are provided on the outer side of the limiting rod (403). The blocking plates (404) are rubber blocking plates and are located between the two sets of movable plates (401).

4. The positioning and clamping device for precision machining of granite according to claim 3, characterized in that, A spring (402) is provided on the side of the movable plate (401) away from the blocking plate (404), and the end of the spring (402) away from the movable plate (401) is fixedly installed on the inner wall of the movable groove (6).

5. The positioning and clamping device for precision machining of granite according to claim 1, characterized in that, The clamping assembly (3) is provided in four sets. The clamping assembly (3) includes a support plate (304) fixedly installed on one side of the movable plate (401). Slider (305) is provided on both sides of the support plate (304). One side of each of the two sets of sliders (305) is fixedly installed on the mounting plate (301). A hydraulic cylinder (306) is provided on the side of the mounting plate (301) near the slider (305). The output end of the hydraulic cylinder (306) passes through the mounting plate (301) and is keyed to the clamping plate (303).

6. The positioning and clamping device for precision machining of granite according to claim 5, characterized in that, Two sets of buffer pads (302) are provided on the side of the clamping plate (303) near the mounting plate (301), and the buffer pads (302) are rubber buffer pads.

7. The positioning and clamping device for precision machining of granite according to claim 1, characterized in that, The drive assembly (5) includes a rotary motor (501) disposed on the inner wall of the movable groove (6). The output end of the rotary motor (501) is keyed to a threaded tube (502). A sleeve (503) is screwed onto the outer side of the threaded tube (502). Two sets of horizontal plates (504) are disposed on the outer side of the sleeve (503). A connecting plate (506) is disposed on the side of the horizontal plate (504) away from the sleeve (503). A rack (505) is disposed on the side of the connecting plate (506) away from the horizontal plate (504), and the rack (505) meshes with a half gear (410).

8. The positioning and clamping device for precision machining of granite according to claim 7, characterized in that, The sleeve (503) has a threaded hole inside, and the thread on the inner wall of the threaded hole is compatible with the thread on the outer side of the threaded tube (502).