Sand core positioning and clamping device
By designing a sand core positioning and clamping device that includes a positioning unit and a clamping unit, the problems of sand rubbing and sand squeezing caused by traditional manipulators when transporting sand cores are solved, and efficient sand core setting and casting yields are achieved. promote.
Patent Information
- Application Number
- CN202323592376.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2033-12-27
AI Technical Summary
Traditional robots can easily cause sand rubbing and sand squeezing when handling sand cores, affecting the yield rate of castings, and inefficient, increasing production costs.
Design a sand core positioning and clamping device, including a positioning unit and a clamping unit. The positioning unit positions the sand core by supporting the positioning component, and the clamping unit uses an elastic contact mechanism and a clamping mechanism to clamp and move the sand core to avoid sand rubbing and squeezing, and enable multiple sand cores to be cored at one time .
It improves the efficiency of sand core setting, reduces labor intensity, prevents the sand core from rubbing and squeezing sand, improves the yield of castings, and reduces production costs.
Smart Images
Figure CN222370313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand core positioning and clamping equipment, in particular to a sand core positioning and clamping device. Background Art
[0002] Sand core is the material used to make core in casting production, which is composed of casting sand, sand binder, etc.
[0003] During the casting production process, the sand core needs to be placed in the designated position for subsequent casting operations. Traditionally, there are two ways of carrying the core. One is to manually carry the sand core for core placement, which is cumbersome and inefficient. The other is to use a robot to clamp the sand core for core placement to reduce the labor intensity of operators and reduce safety hazards.
[0004] However, when traditional manipulators carry and unload sand cores, due to the large number of sand cores, it is very easy to cause sand rubbing and squeezing on the sand cores during the handling process, resulting in material shortages and sand hole defects in the castings, affecting the yield of the castings. Moreover, traditional manipulators can only carry one sand core at a time, which affects work efficiency and increases production costs. Utility Model Content
[0005] In view of this, the technical problem to be solved by the utility model is: to provide a sand core positioning and clamping device, which can core multiple sand cores at a time to improve the core setting efficiency; at the same time, it replaces manual operation and reduces labor intensity; and also prevents sand from being rubbed and squeezed on the sand core, thereby improving the yield rate of castings.
[0006] In order to solve the above technical problems, the technical solution of the utility model is:
[0007] A sand core positioning and clamping device, comprising a positioning unit and a clamping unit;
[0008] The positioning unit comprises a base, on which a plurality of supporting and positioning components and a plurality of lower positioning columns are vertically mounted, wherein the supporting and positioning components are used to support and position at least one sand core, and the lower positioning columns are arranged on the outer side of the supporting and positioning components;
[0009] The clamping unit includes a connecting frame, and a plurality of elastic abutment mechanisms, a plurality of clamping mechanisms, and a plurality of upper positioning columns are vertically installed below the connecting frame. The elastic abutment mechanisms are arranged on the outside of the clamping mechanisms and correspondingly arranged above the sand cores. One of the clamping mechanisms cooperates with the adjacent elastic abutment mechanisms to clamp and fix one of the sand cores. The upper positioning columns are arranged on the outside of the elastic abutment mechanisms and are adapted to the lower positioning columns.
[0010] Preferably, the base comprises a base body, and the supporting and positioning assembly is mounted on the base body;
[0011] A plurality of base sub-bodies are arranged on the base main body, and the lower positioning columns are installed on the base sub-bodies.
[0012] Preferably, the base sub-body and the base main body are integrally formed, and the number of the base sub-bodies is consistent with the number of the lower positioning columns.
[0013] Preferably, the support and positioning assembly includes two relatively arranged main support blocks and a plurality of auxiliary support blocks arranged outside the two main support blocks. The two main support blocks and the plurality of auxiliary support blocks together form a support area, and each support area is used to support and position the two sand cores.
[0014] Preferably, the main support block and the auxiliary support block are both provided with support steps for abutting against the sand core.
[0015] Preferably, the supporting and positioning assembly further comprises a plurality of bottom supporting blocks, and the bottom supporting blocks are arranged inside the supporting area.
[0016] Preferably, the elastic abutment mechanism includes a guide sleeve fixed on the connecting frame, an abutment rod is slidably arranged inside the guide sleeve, a return spring is sleeved on the outer side of the abutment rod, one end of the return spring abuts against the guide sleeve, and the other end of the return spring abuts against the abutment rod.
[0017] Preferably, an elastic block is installed at the bottom of the abutment rod.
[0018] Preferably, the clamping mechanism comprises a clamping cylinder fixedly mounted on the connecting frame, the actuating end of the clamping cylinder is fixedly mounted with two oppositely disposed clamping jaws, and the bottom of the clamping jaws is provided with a limiting hook protruding toward one side of the sand core.
[0019] Preferably, a stopper is provided on at least one of the clamping jaws.
[0020] After adopting the above technical solution, the beneficial effects of the utility model are:
[0021] Since the utility model includes a positioning unit and a clamping unit, the positioning unit can position the sand core, and the clamping unit can clamp and take the sand core placed on the positioning unit, so as to replace the manual handling of the sand core and reduce labor intensity.
[0022] The positioning unit includes a base, on which are mounted a plurality of supporting and positioning components and a plurality of lower positioning columns. The supporting and positioning components are used to support and position at least one sand core. The staff places the sand core on the supporting and positioning components and positions the sand core through the supporting and positioning components to facilitate clamping by the clamping unit.
[0023] The clamping unit includes a connecting frame, and a plurality of elastic abutment mechanisms, a plurality of clamping mechanisms, and a plurality of upper positioning columns are installed below the connecting frame. The elastic abutment mechanisms are correspondingly arranged above the sand core. A clamping mechanism cooperates with an adjacent elastic abutment mechanism to clamp and fix a sand core. When the clamping mechanism clamps the sand core, the elastic abutment mechanism abuts against the upper surface of the sand core. The clamping mechanism and the elastic abutment mechanism cooperate with each other to clamp the sand core together to prevent the sand core from shaking and improve the clamping stability.
[0024] The arrangement of several clamping mechanisms facilitates the core setting of multiple sand cores at one time through the clamping unit, thereby improving the core setting efficiency; at the same time, the support and positioning components on the positioning unit cooperate with each other to prevent sand rubbing and squeezing of the sand cores, thereby improving the casting yield rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0026] Figure 1 This is a schematic structural diagram of a sand core positioning and clamping device according to an embodiment of the utility model;
[0027] Figure 2 yes Figure 1 A cross-sectional view of
[0028] Figure 3 yes Figure 1 The structural diagram of the positioning unit;
[0029] Figure 4 yes Figure 3 A top view of
[0030] Figure 5 yes Figure 1 The structural diagram of the middle clamping unit;
[0031] Figure 6 yes Figure 5 A cross-sectional view of
[0032] In the figure:
[0033] 1. Positioning unit; 11. Base; 111. Base main body; 112. Base auxiliary body;
[0034] 2. Clamping unit; 21. Connecting frame;
[0035] 3. Support positioning assembly; 31. Main support block; 32. Secondary support block; 33. Support area; 34. Support step; 35. Bottom support block;
[0036] 4. Lower positioning column;
[0037] 5. Sand core;
[0038] 6. Elastic abutment mechanism; 61. Guide sleeve; 62. Abutment rod; 63. Elastic block;
[0039] 7. Clamping mechanism; 71. Clamping cylinder; 72. Clamping claw; 73. Limiting hook; 74. Stopper;
[0040] 8. Upper positioning column. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0042] like Figure 1 and Figure 2 As shown together, the utility model includes a positioning unit 1 and a clamping unit 2; the positioning unit 1 can position the sand core 5, and the clamping unit 2 can clamp and take the sand core 5 placed on the positioning unit 1, so as to replace the manual handling of the sand core and reduce labor intensity.
[0043] Among them, the positioning unit 1 includes a base 11, on which a plurality of supporting positioning components 3 and a plurality of lower positioning columns 4 are vertically installed. The supporting positioning component 3 is used to support and position at least one sand core 5, and the lower positioning column 4 is arranged on the outside of the supporting positioning component 3; the staff places the sand core 5 on the supporting positioning component 3, and positions the sand core 5 through the supporting positioning component 3, so as to facilitate clamping by the clamping unit 2.
[0044] The clamping unit 2 includes a connecting frame 21, and a plurality of elastic abutment mechanisms 6, a plurality of clamping mechanisms 7, and a plurality of upper positioning columns 8 are vertically installed below the connecting frame 21. The elastic abutment mechanisms 6 are arranged on the outside of the clamping mechanisms 7 and are correspondingly arranged above the sand core 5. One clamping mechanism 7 cooperates with the adjacent elastic abutment mechanism 6 to clamp and fix one sand core 5. The upper positioning column 8 is arranged on the outside of the elastic abutment mechanism 6 and is adapted to the lower positioning column 4. When the clamping mechanism 7 clamps the sand core 5, the elastic abutment mechanism 6 abuts against the upper surface of the sand core 5. The clamping mechanism 7 and the elastic abutment mechanism 6 cooperate with each other to clamp the sand core 5 together to prevent the sand core 5 from shaking and improve the clamping stability.
[0045] The arrangement of several clamping mechanisms 7 facilitates the core setting of multiple sand cores 5 at one time through the clamping unit 2, thereby improving the core setting efficiency; at the same time, they cooperate with the supporting positioning assembly 3 on the positioning unit 1 to prevent sand from being rubbed or squeezed on the sand core 5, thereby improving the casting yield rate.
[0046] In the present invention, the base 11 includes a base body 111, on which a support positioning assembly 3 is installed; a plurality of base sub-bodies 112 are arranged on the base body 111, on which lower positioning columns 4 are installed. The base sub-bodies 112 are integrally formed with the base body 111, and the number of the base sub-bodies 112 is the same as the number of the lower positioning columns 4.
[0047] like Figures 1 to 4 As shown together, the support and positioning assembly 3 includes two relatively arranged main support blocks 31 and a plurality of auxiliary support blocks 32 arranged on the outside of the two main support blocks 31. The two main support blocks 31 and the plurality of auxiliary support blocks 32 together surround and form a support area 33, and each support area 33 is used to support and position two sand cores 5.
[0048] The two sand cores 5 are placed on two main support blocks 31 and a plurality of auxiliary support blocks 32 . The two main support blocks 31 and a plurality of auxiliary support blocks 32 support and position the two sand cores 5 . The two sand cores 5 are arranged adjacent to each other.
[0049] In order to facilitate the support and positioning of the two sand cores 5 , the main support block 31 and the auxiliary support block 32 are both provided with support steps 34 for abutting against the sand cores 5 .
[0050] In order to better support the bottom of the sand core 5 , the support positioning assembly 3 also includes a plurality of bottom support blocks 35 , which are arranged inside the support area 33 ; when the sand core 5 is placed in the support area 33 , the bottom support blocks 35 provide bottom support for the sand core 5 .
[0051] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown together, the elastic abutment mechanism 6 includes a guide sleeve 61 fixed on the connecting frame 21, an abutment rod 62 is slidably arranged inside the guide sleeve 61, a return spring (not shown in the figure) is sleeved on the outer side of the abutment rod 62, one end of the return spring abuts against the guide sleeve 61, and the other end of the return spring abuts against the abutment rod 62.
[0052] In the technical field, a return spring is used to abut the abutment rod 62 against the guide sleeve 61 so that the abutment rod 62 can reciprocate along its axial direction inside the guide sleeve 61. This is a known technology to technicians in this field, and the specific working principle will not be repeated here.
[0053] When the clamping mechanism 7 clamps the sand core 5, the bottom of the abutment rod 62 abuts against the upper surface of the sand core 5. In order to prevent the abutment rod 62 from causing damage to the surface of the sand core 5, an elastic block 63 is installed at the bottom of the abutment rod 62. The elastic block 63 is made of rubber material and has a buffering effect on the sand core 5 when abutting.
[0054] The clamping mechanism 7 includes a clamping cylinder 71 fixedly mounted on the connecting frame 21, and two oppositely arranged clamping jaws 72 are fixedly mounted on the actuating end of the clamping cylinder 71, and a limiting hook 73 protruding toward one side of the sand core 5 is provided at the bottom of the clamping jaw 72. When the clamping cylinder 71 controls the clamping jaw 72 to clamp the sand core 5, the limiting hook 73 is hooked at the bottom of the sand core 5, and when clamping the moving sand core 5, the sand core 5 is hooked to prevent it from falling.
[0055] At least one of the clamping jaws 72 is provided with a stopper 74. When the two clamping jaws 72 move relative to each other to clamp the sand core 5, the stopper 74 limits the sand core 5 to prevent the sand core 5 from being displaced, thereby improving stability.
[0056] When the utility model is in use, the sand core 5 is first placed on the supporting and positioning component 3, two sand cores 5 are placed in a supporting area 33, and the two sand cores 5 are placed together on the same main supporting block 31. After the main supporting block 31, the auxiliary supporting block 32, and the bottom supporting block 35 support and position the sand core 5, the elastic abutment mechanism 6 and the clamping mechanism 7 on the connecting frame 21 move downward together, wherein the abutment rod 62 first abuts against the upper surface of the sand core 5, cooperates with the supporting and positioning component 3, and fixes the sand core 5 in the vertical direction to prevent it from shaking. After the abutment and fixation, the clamping cylinder 71 controls the clamping claw 72 to clamp the sand core 5, and then the sand core 5 is moved from the supporting area 33 to the external predetermined area to complete the sand core 5 moving and core lowering action, thereby replacing manual core lowering. At the same time, multiple clamping mechanisms 7 clamp and move multiple sand cores 5 at the same time, thereby improving the core lowering efficiency.
[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A sand core positioning and clamping device, characterized in that: It includes a positioning unit and a clamping unit; The positioning unit comprises a base, on which a plurality of supporting and positioning components and a plurality of lower positioning columns are vertically mounted, wherein the supporting and positioning components are used to support and position at least one sand core, and the lower positioning columns are arranged on the outer side of the supporting and positioning components; The clamping unit includes a connecting frame, and a plurality of elastic abutment mechanisms, a plurality of clamping mechanisms, and a plurality of upper positioning columns are vertically installed below the connecting frame. The elastic abutment mechanisms are arranged on the outside of the clamping mechanisms and correspondingly arranged above the sand cores. One of the clamping mechanisms cooperates with the adjacent elastic abutment mechanisms to clamp and fix one of the sand cores. The upper positioning columns are arranged on the outside of the elastic abutment mechanisms and are adapted to the lower positioning columns.
2. The sand core positioning and clamping device according to claim 1, characterized in that: The base comprises a base body, on which the supporting and positioning assembly is mounted; A plurality of base sub-bodies are arranged on the base main body, and the lower positioning columns are installed on the base sub-bodies.
3. The sand core positioning and clamping device according to claim 2, characterized in that: The base sub-body is integrally formed with the base main body, and the number of the base sub-bodies is consistent with the number of the lower positioning columns.
4. The sand core positioning and clamping device according to claim 1, characterized in that: The support and positioning assembly includes two relatively arranged main support blocks and a plurality of auxiliary support blocks arranged outside the two main support blocks. The two main support blocks and the plurality of auxiliary support blocks together form a support area, and each support area is used to support and position the two sand cores.
5. The sand core positioning and clamping device according to claim 4, characterized in that: The main support block and the auxiliary support block are both provided with support steps for abutting against the sand core.
6. The sand core positioning and clamping device according to claim 4, characterized in that: The support and positioning assembly also includes a plurality of bottom support blocks, and the bottom support blocks are arranged inside the support area.
7. The sand core positioning and clamping device according to claim 1, characterized in that: The elastic abutment mechanism includes a guide sleeve fixed on the connecting frame, an abutment rod is slidably arranged inside the guide sleeve, a return spring is sleeved on the outer side of the abutment rod, one end of the return spring abuts against the guide sleeve, and the other end of the return spring abuts against the abutment rod.
8. The sand core positioning and clamping device according to claim 7, characterized in that: An elastic block is installed at the bottom of the abutment rod.
9. The sand core positioning and clamping device according to claim 1, characterized in that: The clamping mechanism comprises a clamping cylinder fixedly mounted on the connecting frame, the action end of the clamping cylinder is fixedly mounted with two oppositely arranged clamping jaws, and the bottom of the clamping jaw is provided with a limiting hook protruding toward one side of the sand core.
10. The sand core positioning and clamping device according to claim 9, characterized in that: At least one of the clamping jaws is provided with a stopper.