C-shaped frame press-fitting equipment for vehicle frame bushing

Abstract

The invention relates to the technical field of automobile part installation, provides C-shaped frame press-fitting equipment for a frame bushing, and solves the technical problem that the bushing is bent due to the fact that a press head of a press and the bushing are not located on the same axis. The equipment comprises a base, a press-fitting mechanism and a feeding mechanism, the press fitting mechanism comprises a press rack, an electric cylinder and a press head; the feeding mechanism comprises a feeding sliding table, a feeding driving unit, a lifting driving unit and a positioning shaft, the feeding sliding table is driven by the feeding driving unit to move to the position below the pressing head and is driven by the lifting driving unit to do lifting motion, the positioning shaft is installed on the press-fitting flange, and the press-fitting flange comprises a sleeve and a flange ring protruding outwards from the sleeve; a first cover plate is mounted on the feeding sliding table at the press-fitting flange mounting position, a stepped hole is formed in the first cover plate, a sleeve of the press-fitting flange penetrates through the stepped hole, and a gap is reserved between a flange ring of the sleeve and the stepped hole; a levelness adjusting press-fitting plate is installed on a bearing plate on the lower portion of the press rack and is in positioning fit with the bottom of the sleeve through a conical structure.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component installation, and in particular to a C-frame press-fitting device for a vehicle frame bushing. Background Art

[0002] Some automobile brackets are provided with mounting sleeves at the ends, and bushings are embedded in the sleeves. The bushings are generally pressed into the mounting sleeves by a press. After the bushings are placed, the bushings and the press head are not on the same axis. For example, although the bushings are upright, their axis deviates from the axis of the press head, or the bushings are tilted, and the axis of the bushings is not parallel to the axis of the press head, which will cause the bushings to bend, affecting the pressing effect and efficiency.

[0003] To this end, we propose a C-frame press-fitting device for frame bushings. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a C-frame pressing device for a frame bushing, which overcomes the deficiencies in the prior art, has a reasonable design, and is easy to adjust. It solves the technical problem in the prior art installation of frame bushings that the press head and the bushing are not on the same axis, resulting in bending of the bushing.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A C-frame press-fitting device for a vehicle frame bushing, characterized in that it comprises a base, a press-fitting mechanism and a feeding mechanism;

[0009] The press mechanism comprises a C-shaped press frame, an electric cylinder and a press head, wherein the C-shaped press frame is mounted on a base, the electric cylinder is mounted on an upper portion of the C-shaped press frame, and the press head is mounted on an output end of the electric cylinder and can move vertically;

[0010] The feeding mechanism includes a feeding slide, a feeding drive unit, a lifting drive unit and a positioning shaft. The feeding slide is driven by the feeding drive unit to move below the pressure head and driven by the lifting drive unit to perform lifting movement. The positioning shaft is installed on the press-fit flange. The press-fit flange includes a sleeve and a flange ring extending outward from the middle of the sleeve.

[0011] The feeding slide is located at the installation position of the press-fit flange and is installed with a first cover plate, the first cover plate is provided with a step hole penetrating from top to bottom, the flange ring of the press-fit flange is slidably installed in the large-diameter end below the step hole, the upper end of the sleeve of the press-fit flange penetrates the small-diameter end above the step hole, and the lower end of the sleeve penetrates the feeding slide, and there are gaps between the flange ring and the large-diameter end of the step hole, and between the sleeve and the small-diameter end of the step hole;

[0012] A horizontal adjustment press plate is installed on the supporting plate at the lower part of the C-shaped press frame, a conical positioning protrusion is formed in the middle of the upper part of the horizontal adjustment press plate, and the plane located in the circumference of the positioning protrusion is the horizontal reference plane, the bottom of the sleeve is against the horizontal reference plane of the horizontal adjustment press plate, and the concave conical positioning groove in the bottom plate is positioned and matched with the positioning protrusion.

[0013] Furthermore, a second cover plate is provided between the first cover plate and the feeding slide, and the first cover plate, the second cover plate and the feeding slide are connected in sequence by bolts. A first adapter hole that matches the gap at the root of the sleeve is formed on the second cover plate, and a second adapter hole that matches the gap at the root of the sleeve is formed on the feeding slide, and the aperture of the second adapter hole is larger than the aperture of the first adapter hole.

[0014] Furthermore, the pressing mechanism includes a linear module and a straightening structure, the press is installed at the output end of the linear module and can perform vertical lifting and lowering movements under the drive of the linear module, the straightening structure includes a connecting sleeve, a straightening bar, a guide bolt and a spring, the connecting sleeve is coaxially installed at the lower end of the cylinder body of the electric cylinder and extends downward, a plurality of circumferentially distributed straightening bars are arranged in the connecting sleeve, the upper part of the straightening bar extends inward to form a driving part, the inner side of the driving part is provided with a guide inclined surface, the guide bolt is installed on the connecting sleeve and cooperates with the straightening bar guide, the spring sleeve is arranged on the guide bolt and its two ends abut against the straightening bar and the connecting sleeve, when the pressure head cooperates with the guide inclined surface of the driving part during the pressing process, the straightening bar is squeezed outward under the action of the pressure head to expand the opening between the straightening bars, and when the pressure head is separated from the driving part during the pressing process, the straightening block is squeezed inward under the action of the spring to reduce the opening between the straightening bars.

[0015] Furthermore, the inner wall of the connecting sleeve is provided with a pair of ridges protruding inwardly corresponding to each straightening bar, and a mounting groove is formed between the pair of ridges. The straightening bar is installed in the mounting groove, and each of the mounting grooves is provided with a pair of guide bolts arranged from top to bottom.

[0016] Furthermore, a pair of pressing mechanisms spaced apart along the front-to-back direction are respectively provided on the left and right sides of the base.

[0017] Further, the feeding slide is slidably mounted on the feeding frame through the first slide rail assembly and slides along the front-to-back direction of the base under the action of the first driving unit, and the crossbeam of the feeding frame is located above the middle of the base and extends along the front-to-back direction of the base;

[0018] The C-shaped press frame is slidably mounted on the base through a second slide rail assembly and slides in the left and right directions along the base under the action of the second driving unit;

[0019] The electric cylinder is slidably mounted on the upper part of the C-shaped press frame through a third slide rail assembly and slides along the front-rear direction of the base under the action of the third driving unit;

[0020] Furthermore, the first drive unit, the second drive unit and the third drive unit all include a servo motor, a screw nut pair and a lower slide plate, the output end of the servo motor is connected to the screw, the screw nut is fixed to the bottom of the slide and cooperates with the screw, and slide rail assemblies are installed on both sides of the slide.

[0021] Furthermore, casters are installed on the lower parts of both sides of the base.

[0022] (III) Beneficial effects

[0023] The present invention provides a C-frame press-fitting device for a vehicle frame bushing, which has the following beneficial effects:

[0024] 1. After the frame is transferred from the feeding mechanism to the pressing mechanism, the lifting drive unit lowers the feeding slide. During the lowering of the feeding slide, the conical positioning groove at the bottom of the pressing flange and the conical positioning protrusion at the upper part of the leveling pressing plate are positioned and matched, and the bottom plane of the pressing flange is fitted with the horizontal reference plane of the leveling pressing plate, so as to realize the effective positioning of the pressing flange, the positioning flange, the positioning shaft and the bushing installed on the positioning shaft, and prevent the axis deviation of the bushing and the pressing head;

[0025] 2. The setting of the straightening mechanism can straighten the deviated bushing by squeezing inwards through each straightening block to prevent the axes of the bushing and the pressure head from being non-parallel.

[0026] Through the above operation, the bushing bending can be effectively avoided, and the press-fitting effect and press-fitting efficiency can be ensured, which is particularly suitable for the synchronous press-fitting of multiple-point bushings of automobile brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0028] Figure 2 It is an exploded schematic diagram of the cooperation of the positioning shaft, the positioning flange, the press-fit flange, the first cover plate, the second cover plate and the feeding slide in Example 1 of the present invention;

[0029] Figure 3 is a cross-sectional schematic diagram of embodiment 1 of the present invention;

[0030] Figure 4 for Figure 3 A schematic diagram of the local enlargement of the middle A;

[0031] Figure 5 It is a schematic diagram of the structure of the coordination of the righting structure, the positioning shaft, the positioning flange, the press-fit flange, the first cover plate, the second cover plate and the feeding slide in Example 2 of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the righting structure state 1 in Example 2 of the present invention;

[0033] Figure 7 for Figure 6 A schematic diagram of the enlarged part of point B in the middle;

[0034] Figure 8 It is a structural schematic diagram of the second state of the righting structure in Example 2 of the present invention.

[0035] In the figure:

[0036] 1. Base;

[0037] 2. Pressing mechanism;

[0038] 21. C-type press frame;

[0039] 211, support plate;

[0040] 22. Electric cylinder;

[0041] 23. Press head;

[0042] 311. Feeding slide;

[0043] 3111, second adapter hole;

[0044] 312. Adjust the level and press the plate;

[0045] 3121, positioning protrusion;

[0046] 321, positioning axis;

[0047] 322, positioning flange;

[0048] 323, press-fit flange;

[0049] 3231, sleeve;

[0050] 3232, flange ring;

[0051] 3233, bottom plate;

[0052] 324, first cover plate;

[0053] 3241, step hole;

[0054] 325, second cover plate;

[0055] 3251, first adapter hole;

[0056] 331, lifting cylinder;

[0057] 332, guide post and guide sleeve assembly;

[0058] 341, first slide rail assembly;

[0059] 342, first screw rod;

[0060] 343, slide down the platform;

[0061] 344, servo motor;

[0062] 345, support frame;

[0063] 4. Righting structure;

[0064] 41. Connecting sleeve;

[0065] 42. Straightening strips;

[0066] 421, driving unit;

[0067] 422, press fitting department;

[0068] 422, guide slope;

[0069] 43. Guide bolt;

[0070] 44. Spring. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] Example 1

[0073] See attached Figure 1-4 , a C-frame press-fitting device for a vehicle frame bushing, comprising a base 1, a press-fitting mechanism 2 and a feeding mechanism;

[0074] The press mechanism 2 includes a C-shaped press frame 21, an electric cylinder 22 and a press head 23. The C-shaped press frame 21 is installed on the base 1, the electric cylinder 22 is installed on the upper part of the C-shaped press frame 21, and the press head 23 is installed on the output end of the electric cylinder 22 and can move vertically. When the C-shaped press frame 21 is used, during the press process, the press frame applies pressure and weighs at the bottom, and the forces offset each other, which can reduce the force on the platform;

[0075] The feeding mechanism includes a feeding slide 311, a feeding drive unit, a lifting drive unit and a positioning shaft 321. The feeding slide 311 is driven by the feeding drive unit to move to the bottom of the pressure head 23 and driven by the lifting drive unit to perform lifting motion (in this embodiment, the feeding slide 311 is installed on the lower slide plate 343 through a group of guide pillar and guide sleeve assemblies 332, and the lifting drive unit is a lifting cylinder 331. Driven by the lifting cylinder 331, the feeding slide 311 performs lifting motion along the guide pillar and guide sleeve). The positioning shaft 321 is installed on the press-fit flange 323, and the press-fit flange 323 includes a sleeve 3231 and a flange ring 3232 formed by extending outward from the middle of the sleeve 3231;

[0076] The feeding slide 311 is located at the installation position of the press-fit flange 323 and is installed with a first cover plate 324. The first cover plate 324 is provided with a step hole 3241 that penetrates from top to bottom. The flange ring 3232 of the press-fit flange 323 is slidably installed in the large-diameter end below the step hole 3241. The upper end of the sleeve 3231 of the press-fit flange 323 penetrates the small-diameter end above the step hole 3241, and the lower end of the sleeve 3231 penetrates the feeding slide 311. There are gaps between the flange ring 3232 and the large-diameter end of the step hole 3241, and between the sleeve 3231 and the small-diameter end of the step hole 3241.

[0077] A horizontal adjustment press plate 312 is installed on the supporting plate 211 at the lower part of the C-shaped press frame 21, and a conical positioning protrusion 3121 is formed in the middle of the upper part of the horizontal adjustment press plate 312, and the plane located in the circumference of the positioning protrusion 3121 is a horizontal reference plane. The bottom of the sleeve 3231 abuts against the horizontal reference plane of the horizontal adjustment press plate 312, and the concave conical positioning groove of the bottom plate 3233 thereof is positioned and matched with the positioning protrusion 3121.

[0078] In this embodiment, the positioning shaft 321 is specifically coaxially fixed on the positioning flange 322 (the main body of the positioning flange is cylindrical), and the positioning flange 322 is inserted into the press-fit flange in the vertical direction and can elastically expand and contract in the vertical direction under the action of the built-in spring (not shown in the figure, the two ends of the built-in spring respectively abut against the bottom plate of the positioning flange and the press-fit flange). Each mounting sleeve of the frame is sleeved outside the positioning flange 322 and its bottom is supported on the upper end surface of the press-fit flange 323 (i.e., the upper end surface of the sleeve), so as to realize the positioning support of the frame. The profiling block and the positioning pin can also be added as needed for support and positioning. The positioning shaft 321 extends out of the mounting sleeve and the staff inserts the bushing on the positioning shaft.

[0079] In this embodiment, a second cover plate 325 is provided between the first cover plate 324 and the feeding slide 311, and the first cover plate 324, the second cover plate 325 and the feeding slide 311 are connected in sequence by bolts. A first adapting hole 3251 is formed on the second cover plate 325 to match the root gap of the sleeve 3231, and a second adapting hole 3111 is formed on the feeding slide 311 to match the root gap of the sleeve 3231, and the aperture of the second adapting hole 3111 is larger than the aperture of the first adapting hole 3251.

[0080] In this embodiment, a pair of press-fitting mechanisms 2 are provided on the left and right sides of the base 1, which are spaced apart along the front-to-back direction, to adapt to the scenario where the four corners of the frame need to be embedded with bushings. When the frames are different, they can be adapted through the overall feeding slide 311 and the horizontal press-fitting plate 312. If they are the same type of frames, that is, frames of different sizes, shapes, and models but all four corners need embedded bushings, the installation position of the press-fitting flange 323 can be adjusted through the setting of the above-mentioned adapter holes. Of course, the press-fitting flanges 323 and positioning flanges 322 of different heights and inner diameters can also be replaced for adaptation, and the horizontal press-fitting plate 312 can be adjusted synchronously.

[0081] In this embodiment, the feeding slide 311 is slidably mounted on the feeding frame through the first slide rail assembly 341 and slides along the front-to-back direction of the base 1 under the action of the first driving unit. The crossbeam of the feeding frame is located above the middle of the base 1 and extends along the front-to-back direction of the base 1.

[0082] The C-shaped press frame 21 is slidably mounted on the base 1 through a second slide rail assembly and slides in the left and right directions along the base 1 under the action of the second driving unit;

[0083] The electric cylinder 22 is slidably mounted on the upper portion of the C-shaped press frame 21 through a third slide rail assembly and slides along the front-rear direction of the base 1 under the action of the third driving unit.

[0084] The first drive unit, the second drive unit and the third drive unit all include a servo motor 344, a screw nut pair and a lower slide plate 343. The output end of the servo motor 344 is connected to the screw, and the screw nut is fixed to the lower part of the slide and cooperates with the screw. Both sides of the slide are equipped with slide rail components. Figure 1 , 3The feeding slide 311 is installed on the lower slide plate 343, and the first sliders are installed on both sides of the lower part of the lower slide plate 343, and a screw nut is installed in the middle of the lower part. The lower slide plate 343 is slidably supported on the first slide rail through the first slider (the first slider and the first slide rail constitute the first slide rail assembly 341), and a first screw rod 342 is arranged between a pair of first slide rails. The first screw rod 342 cooperates with the screw nut and is connected to the servo motor 344, and the support for rotating and supporting the first screw rod 342 and the first guide rail (both ends) are supported on the support frame 345.

[0085] In this embodiment, casters are installed on the lower parts of both sides of the base 1 to facilitate the overall transfer of the equipment.

[0086] Example 2

[0087] See attached Figure 5-8 In this embodiment, the C-frame pressing device, specifically, its pressing mechanism 2 further includes a linear module (not shown in the figure) and a straightening structure 4 compared with the embodiment 1. The linear module is slidably installed on the third slide rail assembly through a slide table. The press is installed at the output end of the linear module and can perform vertical lifting and lowering movements driven by the linear module. The straightening structure 4 includes a connecting sleeve 41, a straightening bar 42, a guide bolt 43 and a spring 44. The connecting sleeve 41 is coaxially installed at the lower end of the cylinder body of the electric cylinder 22 and extends downward. A plurality of straightening bars 42 distributed in a circle are arranged in the connecting sleeve 41. The upper part of the straightening bar 42 extends inward to form a driving part 421. The inner side of the driving part 421 is provided with a guide inclined surface 422. The guide bolt 43 is installed On the connecting sleeve 41 and cooperate with the guide of the straightening bar 42 (specifically, the screw of the guide bolt 43 is threadedly connected to the barrel wall of the connecting sleeve 41, and its head cooperates with the sliding guide of the guide hole of the straightening bar 42 and is limited by the limit ring convex in the guide hole to prevent the straightening bar from falling out), the spring 44 is sleeved on the guide bolt 43 and its two ends abut against the straightening bar 42 and the connecting sleeve 41, when the pressure head 23 cooperates with the guide inclined surface 422 of the driving part 421 during the pressing process, the straightening bar 42 is squeezed outwards under the action of the pressure head 23 to expand the opening between the straightening bars 42, and when the pressure head 23 is separated from the driving part 421 during the pressing process, the straightening block is squeezed inwards under the action of the spring 44 to reduce the opening between the straightening bars 42.

[0088] First, the electric cylinder 22 drives the pressure head 23 to press down, and the pressure head 23 cooperates with the guiding inclined surface 422 of the driving part 421 to push each straightening bar 42 outward; secondly, the electric cylinder 22, the pressure head 23, and the straightening structure 4 are driven to move downward as a whole through the linear module, so that the straightening bar 42 is enclosed outside the bushing; then, the electric cylinder 22 continues to drive the pressure head 23 to move downward, and after the pressure head 23 is separated from the driving part 421, each straightening bar 42 is retracted inward, and the pressing part 422 at the lower end of the straightening bar 42 presses and limits the bushing to keep the bushing in an upright state, and finally, the pressure head 23 presses the bushing upright into the mounting sleeve 3231 of the frame.

[0089] In this embodiment, the inner wall of the connecting sleeve 41 is provided with a pair of ridges protruding inwardly corresponding to each straightening bar 42, and a mounting groove is formed between the pair of ridges. The straightening bar 42 is installed in the mounting groove, and each of the mounting grooves is provided with a pair of guide bolts 43 arranged from top to bottom.

[0090] In this embodiment, a press-fitting portion 422 is further provided at the lower portion of the straightening bar 42. The press-fitting portion 422 and the driving portion 421 both protrude from the main body of the straightening bar 42. Both upper and lower sides of the press-fitting portion 422 are provided with guide slopes 422 to facilitate the downward pressing and upward retreat of the pressing head 23. The press-fitting portion 422 can be integrally formed with the straightening bar 42, or can be installed in a split manner to facilitate replacement and maintenance.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0092] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A C-frame press-fitting device for a vehicle frame bushing, characterized in that: It includes a base, a pressing mechanism and a feeding mechanism; The press mechanism comprises a C-shaped press frame, an electric cylinder and a press head, wherein the C-shaped press frame is mounted on a base, the electric cylinder is mounted on an upper portion of the C-shaped press frame, and the press head is mounted on an output end of the electric cylinder and can move vertically; The feeding mechanism includes a feeding slide, a feeding drive unit, a lifting drive unit and a positioning shaft. The feeding slide is driven by the feeding drive unit to move below the pressure head and driven by the lifting drive unit to perform lifting movement. The positioning shaft is installed on the press-fit flange. The press-fit flange includes a sleeve and a flange ring extending outward from the middle of the sleeve. The feeding slide is located at the installation position of the press-fit flange and is installed with a first cover plate, the first cover plate is provided with a step hole penetrating from top to bottom, the flange ring of the press-fit flange is slidably installed in the large-diameter end below the step hole, the upper end of the sleeve of the press-fit flange penetrates the small-diameter end above the step hole, and the lower end of the sleeve penetrates the feeding slide, and there are gaps between the flange ring and the large-diameter end of the step hole, and between the sleeve and the small-diameter end of the step hole; A horizontal adjustment press plate is installed on the supporting plate at the lower part of the C-shaped press frame, a conical positioning protrusion is formed in the middle of the upper part of the horizontal adjustment press plate, and the plane located in the circumference of the positioning protrusion is the horizontal reference plane, the bottom of the sleeve is against the horizontal reference plane of the horizontal adjustment press plate, and the concave conical positioning groove in the bottom plate is positioned and matched with the positioning protrusion.

2. The C-frame press-fitting device for a vehicle frame bushing according to claim 1, characterized in that: A second cover plate is provided between the first cover plate and the feeding slide, and the first cover plate, the second cover plate and the feeding slide are connected in sequence by bolts. A first adapter hole that matches the gap at the root of the sleeve is formed on the second cover plate, and a second adapter hole that matches the gap at the root of the sleeve is formed on the feeding slide, and the aperture of the second adapter hole is larger than that of the first adapter hole.

3. A C-frame press-fitting device for a vehicle frame bushing as claimed in claim 1 or 2, characterized in that: The pressing mechanism includes a linear module and a straightening structure, the pressing machine is installed at the output end of the linear module and can perform vertical lifting and lowering movements under the drive of the linear module, the straightening structure includes a connecting sleeve, a straightening bar, a guide bolt and a spring, the connecting sleeve is coaxially installed at the lower end of the cylinder body of the electric cylinder and extends downward, a plurality of straightening bars distributed in a circle are arranged in the connecting sleeve, the upper part of the straightening bar extends inward to form a driving part, the inner side of the driving part is provided with a guide inclined surface, the guide bolt is installed on the connecting sleeve and cooperates with the straightening bar guide, the spring sleeve is arranged on the guide bolt and its two ends abut against the straightening bar and the connecting sleeve, when the pressing head cooperates with the guide inclined surface of the driving part during the pressing process, the straightening bar is squeezed outward under the action of the pressing head to expand the opening between the straightening bars, and when the pressing head is separated from the driving part during the pressing process, the straightening block is squeezed inward under the action of the spring to reduce the opening between the straightening bars.

4. The C-frame press-fitting device for a vehicle frame bushing according to claim 3, characterized in that: The inner wall of the connecting sleeve is provided with a pair of ridges protruding inwardly corresponding to each straightening bar, and a mounting groove is formed between the pair of ridges. The straightening bar is installed in the mounting groove, and each mounting groove is provided with a pair of guide bolts arranged from top to bottom.

5. The C-frame press-fitting device for a vehicle frame bushing according to claim 1, characterized in that: A pair of pressing mechanisms are respectively arranged on the left and right sides of the base and are spaced apart along the front-rear direction.

6. A C-frame press-fitting device for a vehicle frame bushing as claimed in claim 1 or 5, characterized in that: The feeding slide is slidably mounted on the feeding frame through the first slide rail assembly and slides along the front-to-back direction of the base under the action of the first driving unit. The crossbeam of the feeding frame is located above the middle of the base and extends along the front-to-back direction of the base. The C-shaped press frame is slidably mounted on the base through a second slide rail assembly and slides in the left and right directions along the base under the action of the second driving unit; The electric cylinder is slidably mounted on the upper part of the C-shaped press frame through the third slide rail assembly and slides along the front-rear direction of the base under the action of the third driving unit.

7. The C-frame press-fitting device for a vehicle frame bushing according to claim 6, characterized in that: The first drive unit, the second drive unit and the third drive unit all include a servo motor, a screw nut pair and a lower slide plate, the output end of the servo motor is connected to the screw, the screw nut is fixed to the lower part of the slide and cooperates with the screw, and slide rail assemblies are installed on both sides of the slide.

8. The C-frame press-fitting device for a vehicle frame bushing according to claim 1, characterized in that: Casters are installed at the lower parts of both sides of the base.

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